What did you do with your GMT400 today...or yesterday....

[Big T]

Installed a turbo oil drain kit from Quadstar on the ‘94 K2500 Suburban. Mostly went well, save for the final step of installed the tube into the block plate. There are two o-rings and the first one kept sliding up out of its groove when it should go into the block plate. I think I should have first installed the tube in the block plate, then install the block plate onto the engine.

Spent hours on this and finally gave up. I’ll have some rework to do down the road after this brief trip to Montana. The intention is to finish this with a Pro Vent catch can that continuously drains into the engine. It also cleans up a chronic oil leak on this truck.

 

[dbrannon79]

it kinda looks like that o-ring might have swelled up or is slightly too large. try using a smear of di-electric grease on them when going in.

 

[Big T]

it kinda looks like that o-ring might have swelled up or is slightly too large. try using a smear of di-electric grease on them when going in.

I greased it with Honda special grease. It looks swole because it is no longer in its groove. It is on the wider part of the pipe. The other o-ring is in its groove.

The issue is angle of attack. I’m not getting a truly straight shot into the block plate. The tube is bending around the exhaust manifold which makes it near impossible to get a straight push into the block plate. The result is the o-ring gets pushed up the tube.

 

[Big T]

I have two kits. Here’s what another pipe looks like:

 

[MrMarty51]

I have two kits. Here’s what another pipe looks like:

View attachment 91586

How does that pipe fit the installed receiver ?
Another alternative would be to remove the receiver plate and die grind a chamfer in the top of the bore.
I have the earlier kit installed on My truck.
The receiver on Mine is a rigid pipe mounted to the plate. It sticks up and out away from the exhaust manifold.

It was made for the GM turbo charger. Easy enough to make the adaption, bored the oil return flange bolt holes a size bigger. Maybe now 5/16ths or 3/8ths.

 

[Will L.]

Hey all: idk where else to ask this but since it is a gmt400 part I figured here is ok.
Do you guys know what years this under hood light was on? I remember them on gassers and iirc diesels too. It mounted on the fender well iirc. The light is on a cord that unrolls and turns on automatically when you unroll it.

 

[Paveltolz]

Drove to the Mesa Overlook north of Virgin UT. Nice little drive up 8% grade with great views all the way.

 

[MrMarty51]

Hey all: idk where else to ask this but since it is a gmt400 part I figured here is ok.
Do you guys know what years this under hood light was on? I remember them on gassers and iirc diesels too. It mounted on the fender well iirc. The light is on a cord that unrolls and turns on automatically when you unroll it.

View attachment 91587

I robbed one from a 1988 K1500 and My 1993 had one.
I’m not sure about the 95 year trucks. Seems I seen on a little newer and it was a little different.
Maybe if there is one at the JY I’ll get it and find a position under the hood of the2000 K3500 to mount it.
I never did use the one on the 93, I just thought it was a mighty cool accesory.

 

[Paveltolz]

Hey all: idk where else to ask this but since it is a gmt400 part I figured here is ok.
Do you guys know what years this under hood light was on? I remember them on gassers and iirc diesels too. It mounted on the fender well iirc. The light is on a cord that unrolls and turns on automatically when you unroll it.

View attachment 91587

1996’s had them mounted on the firewall next to the Coolant bottle.

 

[jrsavoie]

How does that pipe fit the installed receiver ?
Another alternative would be to remove the receiver plate and die grind a chamfer in the top of the bore.
I have the earlier kit installed on My truck.
The receiver on Mine is a rigid pipe mounted to the plate. It sticks up and out away from the exhaust manifold.

It was made for the GM turbo charger. Easy enough to make the adaption, bored the oil return flange bolt holes a size bigger. Maybe now 5/16ths or 3/8ths.

If the sizing works out right, I've had good luck with a unibit/step bit or countersink bit for chamfering a hole.

I've never gad much luck with those rings not leaking. On similar stuff I welded a coupling or nipple on or threaded it.

 

[jrsavoie]

Hey all: idk where else to ask this but since it is a gmt400 part I figured here is ok.
Do you guys know what years this under hood light was on? I remember them on gassers and iirc diesels too. It mounted on the fender well iirc. The light is on a cord that unrolls and turns on automatically when you unroll it.

View attachment 91587

I had a couple that mounted to the hood where the other hood light always mounted

 

[MrMarty51]

Drove the truck the 30 miles to church yesterday. Run perfect the entire distance.
With that tuned ECM and the work thats been done this truck has turned into a fun to drive unit.
I think the fuel consumption has greatly improved too.
After about a 25 mile drive there was a wide spot in the road, pulled over, opened the hood, with the back of the hand gently touched the copper cooler tubes for the exhaust drive pressure gauges, the both were perfectly cool to the touch. No worries of those ever melting the plastic tube thats adapted to those.
After church, a trip to the store. On the way home the truck once again stalled, I was to quick at shutting off the key to notice if dash indicators, etc. was still lit up. Pulled to the side of the street then twisted the key to the run position, fired right back up and drove on home.
After getting home, into the garage with that unit. And as @dbrannon79 suggested, swapped the pump driver to the new spare Dorman unit.
Have to give it some time, drive it for a while and see if the Stanadyne pump driver was the problem.
In the mean time, I’m going to order another driver and harness, with heat sink kit and string and mount that behind the bumper, then have two spares and one to run on.
If switching to the Dorman driver seems to fix the problem then I’ll get another Stanadyne unit coming as I have the extension harness specific to that driver strung through from the front bumper to the harness position at the IP.

 

[dbrannon79]

Hey all: idk where else to ask this but since it is a gmt400 part I figured here is ok.
Do you guys know what years this under hood light was on? I remember them on gassers and iirc diesels too. It mounted on the fender well iirc. The light is on a cord that unrolls and turns on automatically when you unroll it.

View attachment 91587

It seems that it was on 88-95 GMC's from what I can tell. I found this thread on the innerwebs about them

Let there be light

www.silveradosierra.com

I have one under my seat I'd like to install at some point, just haven't gotten around to it. I wonder if this was an optional package from GM or if we can find a GM part number for it.

 

[dbrannon79]

@Will L. I think the GM part number is 15528774 if that helps you.

 

[Big T]

How does that pipe fit the installed receiver ?
Another alternative would be to remove the receiver plate and die grind a chamfer in the top of the bore.
I have the earlier kit installed on My truck.
The receiver on Mine is a rigid pipe mounted to the plate. It sticks up and out away from the exhaust manifold.

It was made for the GM turbo charger. Easy enough to make the adaption, bored the oil return flange bolt holes a size bigger. Maybe now 5/16ths or 3/8ths.

It fits snugly into the block plate. It takes force to get it in. On my ‘99 it was a PITA. The second o-ring never goes in and simply rests on top of the block plate. The first one does need to be pushed into to the block plate which is where I’m having trouble.

 

[dbrannon79]

It fits snugly into the block plate. It takes force to get it in. On my ‘99 it was a PITA. The second o-ring never goes in and simply rests on top of the block plate. The first one does need to be pushed into to the block plate which is where I’m having trouble.

which oil drain kit is this one?

 

[Big T]

It fits snugly into the block plate. It takes force to get it in. On my ‘99 it was a PITA. The second o-ring never goes in and simply rests on top of the block plate. The first one does need to be pushed into to the block plate which is where I’m having trouble.

Here’s a pic showing how the tube should sit in the plate:

 

[Big T]

which oil drain kit is this one?

Ultimate Turbo Oil Drain Kit

The best turbo oil drain kits for your 6.2L or 6.5L diesel with side-mount turbo! Do it once and do it right with our easy to install kit. **2023 UPDATED BILLET ALUMINUM BASE PLATE WITH DRAIN BACK PORT FOR CATCH CAN, BYPASS OIL FILTER OR OIL CENTRIFUGE*** Stainless steel OEM quality flex tube...

quadstartuning.com

 

[Big T]

Hey all: idk where else to ask this but since it is a gmt400 part I figured here is ok.
Do you guys know what years this under hood light was on? I remember them on gassers and iirc diesels too. It mounted on the fender well iirc. The light is on a cord that unrolls and turns on automatically when you unroll it.

View attachment 91587

FWIW none of my under hood engine bay lights have ever worked and I have never bothered to fix them because I’m too busy chasing other issues on the trucks.

IRRC Paveltolz had an LED conversion for this engine bay light. It did come with side effects such as breaking CV axles and front differentials.

 

[Will L.]

Thanks guys! Eric found this incase it helps someone also: