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1984 720 King Cab - Red Thunder

Printed From: Datsun Mini Truckin
Category: Datsun Trucks
Forum Name: 720's
Forum Discription: The last of the Datsun Trucks
URL: http://www.datsunminitruckin.com/forum/forum_posts.asp?TID=2486
Printed Date: 23 Oct 2018 at 5:51pm


Topic: 1984 720 King Cab - Red Thunder
Posted By: foxfan1992
Subject: 1984 720 King Cab - Red Thunder
Date Posted: 05 Aug 2013 at 4:00am
Hey all. New user here :)
Just posting some pics of my faithful 720 truck "Red Thunder"
She currently has just under 184,000kms on the odometer and spends her retirement chasing buses and taking me places. (Mostly to/from work recently). She does occasionally make herself useful from time to time though, taking things to the dump or bringing free/low cost items back home for us to use.
Red Thunder has given me a lot of bonding time - in which I've learned these trucks were built to last - heck I'd trust one of these with my life. She did have a few fuel-starvation issues and some other parts had to be replaced, but she's still going strong and has very rarely let me down.

Here is a recent image in Nanaimo, BC - featuring a BC Transit 1995 New Flyer D40LF. Big smile
RT in Nanaimo

Also here's a picture of her sitting in the driveway at home, awaiting something to do. As you can see she just has some minor surface rust along the roof and a little on the side. What you can't see is two long rust-hole gashes in the bed alongside the wheel wells which will be repaired as soon as possible. She also needs a new exhaust pipe and muffler, and a new radiator (though the $20 bottle of radiator sealant hasn't let a single drop of coolant out in months).
RT in driveway

Also here's an image better showing her other side. Notice the large dent in the mirror - there's a story behind that. On my second driving lesson a few years ago I was distracted by something and hit a tubular marker with it at 30mph. Tongue




Replies:
Posted By: MOCMAN
Date Posted: 07 Aug 2013 at 12:46pm
Nice! Welcome! They were definitely built to last. I love Victoria. I have a lot of family on the island.

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John 3:16
"There's a fine line between "Hobby" and "Mental Illness"
1985 Nissan 720 KingCab 2wd 5spd.
1995 Nissan Hardbody 2wd Reg. Cab
2014 VW passat SEL VR6
1966 VW Beetle
2005 Ford Explorer XLT 4X4


Posted By: foxfan1992
Date Posted: 18 Aug 2013 at 7:31pm
Thanks. I've replaced the passenger-side tail light this week since it was broken.

All I need to do now is repair or replace the radiator, get the spark plugs checked and cylinders cleaned of carbon, and have someone look for a bad ground affecting the headlights. Once I've done all that I can look into saving up for a new paint job for it :D


Posted By: 76dat
Date Posted: 13 Dec 2013 at 5:32am
She's a beauty Smile


Posted By: foxfan1992
Date Posted: 13 Dec 2013 at 1:36pm
Just an update here... sadly my beloved Red Thunder has suffered quite a blow - she was running on two cylinders on startup and it appeared to be getting worse. About three weeks ago me and my dad took on the task of taking her apart. A few days ago we found the problem at hand - a blown headgasket. She was also using a LOT of oil and the problem there was worn/burned out oil guides. We took the cylinder head in for resurfacing, the sad news is that the cylinder head is a write-off. Fortunately just for a little extra money they are providing us with another, so Red Thunder will live on (at least for a while to come anyway!)


Posted By: foxfan1992
Date Posted: 22 Dec 2013 at 11:35pm
Another update.

Well the truck put up a really good fight against us repairing it today. First we removed the oil pump and filter - not a big deal, but then we had to remove the starter motor and jam a screwdriver in the teeth to stop the flywheel from turning when we undid the crankshaft bolt and pulley. Fortunately this went without too many problems - the real problem was dropping the sump, we removed every screw from it but it wouldn't budge. In the end we had to use a couple of small wooden wedges and a hammer to pry it off the bottom. No damage to the oil pan gasket as a result, fortunately. The only thing that didn't put up a fight was the crankshaft sprocket, which should have according to the manual, but it slid right off.

So now we're at the point where it's no longer dis-assembly, but reassembly. Thank goodness!



Posted By: Rusty
Date Posted: 23 Dec 2013 at 10:34pm
Sounding good fox, good luck and keep us updated, oh yeah, if ya could, we'd love to see some pics of your handy work.

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Posted By: foxfan1992
Date Posted: 23 Dec 2013 at 11:14pm
I won't post every picture to this forum, but here's a set on flikr with most of the pictures I've taken - mostly to recall how everything goes back together. XD
http://www.flickr.com/photos/61833567@N03/sets/72157638967859014/


Posted By: EzCruiser
Date Posted: 24 Dec 2013 at 3:52pm
Nice!  Glad the engine is coming along!  

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Posted By: foxfan1992
Date Posted: 02 Jan 2014 at 3:22pm
I also took a few videos of the truck when I took it down to Portland, OR. Was sharing a ride with a new friend who gladly volunteered to video while I was driving:

Radiator leak! D: http://www.youtube.com/watch?v=FkAreIzNtB8

Over the Columbia River Drawbridge: http://www.youtube.com/watch?v=L5DMBT7Q9cI

Over the Fremont Bridge: http://www.youtube.com/watch?v=lXj3t4O5t58

(Apologies, I did have some 'tunes playing on my new stereo. xD)


Posted By: smooth620
Date Posted: 02 Jan 2014 at 5:19pm
Originally posted by foxfan1992 foxfan1992 wrote:

Another update.

The only thing that didn't put up a
fight was the crankshaft sprocket, which should have according to the
manual, but it slid right off.





Replace the crankshaft pulley, it shouldn't slide off. Whether it's a Datsun, Nissan, Honda, Acura It should be a snug fit. A loose fit is a sign of pending issues.
Same for camshaft. Worked on an Accord sounding crappy, turned out to be a worn camgear. It literally fell off the cam using 2 fingers.

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Better to learn from other peoples mistakes than to make them yourself.-Anonymous



Posted By: foxfan1992
Date Posted: 03 Jan 2014 at 3:08am
Yes. Seeing as I had to take the whole timing case apart it was decided to replace the timing chain and sprockets too, not to mention all the gaskets. (The sump gasket had actually been fitted with RTV sealant which it apparently doesn't need in such great amounts). I purchased the whole timing chain kit almost a year ago, but never got around to taking it apart until now.

The new crankshaft sprocket did put up a good fight when it went back on, so no issues there.
As the truck also has a new cylinder head with all new valve guides it shouldn't burn oil anymore as it did previously. Some work was also done to repair a blowing exhaust pipe, so Red Thunder isn't half as noisy as she used to be. xD

Also, here's a video of my truck coming back from Portland, OR through the Seattle area.
http://youtu.be/cl9h-uT5Ep8" rel="nofollow - http://youtu.be/cl9h-uT5Ep8


Posted By: MOCMAN
Date Posted: 03 Jan 2014 at 11:51am
Watching that last video going through Seattle takes me back to my old everyday commute. Blech!! I started having an anxiety attack all over again. My knee jerk reaction was to yell at someone. Ahhh. Glad I moved away from there. Beautiful place but the traffic is the worst anywhere.

-------------
John 3:16
"There's a fine line between "Hobby" and "Mental Illness"
1985 Nissan 720 KingCab 2wd 5spd.
1995 Nissan Hardbody 2wd Reg. Cab
2014 VW passat SEL VR6
1966 VW Beetle
2005 Ford Explorer XLT 4X4


Posted By: foxfan1992
Date Posted: 07 Jan 2014 at 8:06pm
Another update... got the truck out of the garage and took it for a short drive yesterday. It's not 100%, but it does go. I'm not sure what the problem is, it idles really high when it's cold and when warmed up it idles great, but runs rough - sounding like a Ford F150 xD

I guess my truck's just trying to earn her name back after I fixed the blowing exhaust. Dad informed me it may be my valves and ignition timing - we did the valve clearances on the cold engine before we started it, but then we have to recheck them after it's had a good run and do the ignition timing, not to mention retorque the cylinder head bolts once it's had a few runs.


Posted By: Datsr20
Date Posted: 09 Jan 2014 at 9:29pm
Check your carb for the high rev at cold


Posted By: MOCMAN
Date Posted: 09 Jan 2014 at 10:19pm
Put a Weber carb on it. You'll be soooo much happier!!

-------------
John 3:16
"There's a fine line between "Hobby" and "Mental Illness"
1985 Nissan 720 KingCab 2wd 5spd.
1995 Nissan Hardbody 2wd Reg. Cab
2014 VW passat SEL VR6
1966 VW Beetle
2005 Ford Explorer XLT 4X4


Posted By: foxfan1992
Date Posted: 10 Jan 2014 at 3:41am
I probably will swap the stock carb for a Weber, but the stock one will suffice for now. Already put over $1000 into this truck and it hasn't even got the bodywork repairs or respray it deserves yet!

It did idle FAR too fast before - the sort of idle that if you put it in gear you'd probably shoot off at 0-60 in five seconds. This was actually a vaccuum leak due to two missing nuts. They were put back on before I took it for a fresh tank of gasoline when I made the previous post. Should be checking the hot valve clearances and ignition timing this weekend if the rain holds off.




Posted By: foxfan1992
Date Posted: 09 Mar 2014 at 4:52pm
Just a few more images... took the truck on a road trip two weeks ago after having fixed the valve clearances and retightening the cylinder head bolts. Here's one... snowed in in Nanaimo!
snowtruck













Then another picture, this one's at the Tantalus lookout, on the way to Vancouver from Whistler. Next few things planned for this truck are welding up the rust gashes in the bottom and sides of the bed, and hopefully a new paint job, exhaust pipe and muffler.


Posted By: foxfan1992
Date Posted: 25 Aug 2014 at 4:58pm
Got some news to share... some of it isn't very pretty - but at least I still have the truck.

Red Thunder has been popping and banging about and taking me to-and-fro. I was planning on taking it to Seattle (for a third time) but sadly she's in no condition to do so. Lately it has been running weak and last week I took her up to Nanaimo for the day. Lots of backfiring and some particularly loud ones really had me thinking about it. I parked the truck and left it to cool down, hoping it would do better on the return trip. Returning home it wasn't much better, put the truck in neutral to minimize the backfiring at every red light I hit. Just south of Duncan some kids decided to pull out straight in front of me, needing me to jam on the brakes - hard. Luckily I didn't hit them. Again I hit another red light about ten kms south of Duncan (Cobble Hill) and put the truck in neutral, and it cut out. Long story short I requested a tow from CAA back home.

I'm thinking carburetor issues now - so not only does my truck need a new exhaust pipe (custom fabricated because of the lack of a catalytic converter) muffler and tail pipe - but also needs a new carburetor. Right now of course I can't afford that sort of money ($532 for the exhaust, muffler and tail pipes, and nye-on $400 for a weber carb). So in short, my truck will be reserved for local shopping runs only (it only cuts out when the engine is at temperature, cold it will still idle) until the middle of September when I will cancel the insurance (cost $30). Hopefully I can request a local high school to do the carburetor replacement for me, and then look at having the exhaust pipe, muffler and tail pipe replaced. Another problem though is all of the BC Schools are still on strike, meaning there might not be any school for a while.

Jeez...


Posted By: Rusty
Date Posted: 26 Aug 2014 at 12:50am
Hate to here that. Hopefully you can get a school to do the carb, save some money there. She just needs alittle freshening up and she'll be good as new.

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Posted By: EzCruiser
Date Posted: 26 Aug 2014 at 4:44pm
Water in the gas? I'd check the carb bowl. Not sure about prices there but our local muffler shop put a complete exhaust, I supplied resonator, on my truck for $90.. you can save a lot of money by purchasing the resonator or muffler from the internet. The carburetor shouldn't cost you that much. A weber 32/36 will run you about 180-220 here plus the adapter which is 15-45. Shop around. Ebay is your best friend.

Also, I would check the timing and make sure your setting the time with the dizzy unhooked and plugged vacuum port.

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Posted By: foxfan1992
Date Posted: 26 Aug 2014 at 9:36pm
The truck runs fine cold - but when it warms up it cuts out every time it is started - no matter what is done with the idle screw.

As for Ebay - the only Weber 32/36s I've found run $290USD, and do NOT ship to Canada. I'm hoping I can find one on my trip to Seattle in four weeks' time for cheaper and bring it back myself.


Posted By: smooth620
Date Posted: 26 Aug 2014 at 11:59pm
Originally posted by foxfan1992 foxfan1992 wrote:

The truck runs fine cold - but when it warms up it cuts out every time it is started - no matter what is done with the idle screw.
That symptom you described narrows it down to a vacuum leak.
Best way to test for a vac leak is when the engine is cold. Start it & Spray carb cleaner around carb base gasket, intake manifold, etc. When you hear an abrupt change in RPMs you've found your leak.


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Better to learn from other peoples mistakes than to make them yourself.-Anonymous



Posted By: EzCruiser
Date Posted: 27 Aug 2014 at 12:06am
http://www.ebay.com/itm/Weber-32-36-DGEV-Carb-1-Yr-Warr-/200721589877
I have found several but don't know if they ship to canada. Heck, if you find one you like just ask if they would consider shipping to Canada.

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Posted By: EzCruiser
Date Posted: 27 Aug 2014 at 12:08am
I also agree with smooth. Is this truck equipped with smog?

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Posted By: smooth620
Date Posted: 27 Aug 2014 at 12:41am
Originally posted by foxfan1992 foxfan1992 wrote:

Another update... got the truck out of the garage and took it for a short drive yesterday. It's not 100%, but it does go. I'm not sure what the problem is, it idles really high when it's cold and when warmed up it idles great, but runs rough - sounding like a Ford F150 xD

I guess my truck's just trying to earn her name back after I fixed the blowing exhaust. Dad informed me it may be my valves and ignition timing - we did the valve clearances on the cold engine before we started it, but then we have to recheck them after it's had a good run and do the ignition timing, not to mention retorque the cylinder head bolts once it's had a few runs.
Went back and re-read your build thread, i must've missed the post above. On 1st start up it should run ok but not really rough.
 Be sure all timing marks are correct when crank pulley is on zero.  Retorque head and do a compression test or leakdown test to be sure all valves are closing tight. Recheck timing with a timing light. Test all spark plug wires, be sure they are all firing consistently.
You should be able to do these tests even with an off tuned carb.


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Better to learn from other peoples mistakes than to make them yourself.-Anonymous



Posted By: foxfan1992
Date Posted: 27 Aug 2014 at 12:43am
The truck is equipped with EGR and all the pipes involved with reducing emissions, yes. For some reason it is missing the catalytic converter as the exhaust pipe is not the original one. Weird.

Anyhow I will see what I can do with the vaccuum leak. I have a feeling it might be the carburetor just being worn out and letting too much air in.


Posted By: foxfan1992
Date Posted: 31 Aug 2014 at 2:07am
Looked at the carburetor and noticed a pipe that seems to be missing. Will take a photo tomorrow and post it here. I'm thinking it might be the vaccuum advance, but would the truck start and run at all if it was?


Posted By: Braden620
Date Posted: 31 Aug 2014 at 10:23pm
Should run fine without vacuum advance.  

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If we ever forget that we are One Nation Under God, then we will be a nation gone under.
Ronald Reagan


Posted By: foxfan1992
Date Posted: 02 Sep 2014 at 2:53am
Found the missing pipe and hooked it back up, turns out one of the other pipes was tugging on it and eventually it came loose. Reconfigured it so it shouldn't come off so easily and now the truck is running smoothly.

Gonna take it for a test drive up to Nanaimo on Wednesday, and if it passes I'll be driving her down to Seattle and Bremerton in three weeks' time. On that note - does anybody here know of a good place to get an exhaust pipe replacement done? The shop here quoted $532 for a custom pipe, new muffler and tailpipe, because the catalytic converter is missing. Ideally I'd like to get a catalytic converter fitted and new exhaust pipe, tailpipe and muffler - preferably less than $500.


Posted By: EzCruiser
Date Posted: 02 Sep 2014 at 9:36am
These guys have a 4.3 rating on google.com

677 Burnside Rd E
Victoria, BC, Canada
+1 250-385-7033

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Posted By: EzCruiser
Date Posted: 02 Sep 2014 at 9:37am
http://www.google.com/?gws_rd=ssl#q=muffler+shops+in+victoria+bc" rel="nofollow - https://www.google.com/?gws_rd=ssl#q=muffler+shops+in+victoria+bc

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Posted By: foxfan1992
Date Posted: 02 Sep 2014 at 2:36pm
Thanks, I will go by them today and ask.

I was thinking in the Metro Seattle area though, since I'm going to be down there for a week it would be ideal to have the truck repaired while there - hopefully a lot cheaper than in BC.


Posted By: MOCMAN
Date Posted: 02 Sep 2014 at 7:34pm
You can get and exhaust kit on rockauto.com for about $160 shipped to Seattle. It would probably be cheaper to ship it to Seattle than Victoria. Change it yourself. Just order everything but the catalytic converter unless you need that too. That kit includes the tailpipe, intermediate pipe, muffler and gaskets.

http://www.rockauto.com/catalog/moreinfo.php?pk=5913294&cc=1210329]

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John 3:16
"There's a fine line between "Hobby" and "Mental Illness"
1985 Nissan 720 KingCab 2wd 5spd.
1995 Nissan Hardbody 2wd Reg. Cab
2014 VW passat SEL VR6
1966 VW Beetle
2005 Ford Explorer XLT 4X4


Posted By: Rusty
Date Posted: 02 Sep 2014 at 11:24pm
Ouch on the muffler and cad. Sorry can't do anything for ya from way down this way. Glad ya got things figured out. Good luck and hope you can find a cheaper price on the exhaust.

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Posted By: foxfan1992
Date Posted: 04 Sep 2014 at 12:47pm
Took the truck for a test drive to Nanaimo yesterday and she is running a lot better. The rotten exhaust still vibrating and causing popping and banging though (The drive is no freeway, it's twisty and windy with traffic lights, so a damn good testing ground for a new exhaust system when I get it.)

Anyways I do not believe I will be driving the truck to Seattle as it's just too uncomfortable and noisy. For now she will be for local trips only within the Greater Victoria area. I might be able to have the exhaust system shipped here using a local company for a fair price (My dad is part of a local auto club and they know a few things about stuff like that)
Would make a fun winter project too - last winter was replacing the cylinder head, timing chain assembly and head gasket and then putting it all back together. This winter an exhaust replacement and a few other replacement parts to make things interesting. Heheh.



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