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Intake Manifold and Valve Covers

While you have it apart are you cleaning the insides of you pushrods really well too? That's weird wear on those rockers. If you have plugged push rods that would give some oil starvation.
 
n8in8or said:
While you have it apart are you cleaning the insides of you pushrods really well too? That's weird wear on those rockers. If you have plugged push rods that would give some oil starvation.
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Push rods were not plugged. It's back together now. Intake going on, then turbo.
 
that wear is why I think ALL motors should have rollers... the roller tip rides on the face of the valve stem instead of sliding across it.

I'm planning to put the HS rockers on all my motors.
of course, I put 5K a month on my trucks...
 
I put it all back together and ran it, but found a leak one of the injector lines where it connects to the IP. I can see the leak occurring at about the 3 or 4 o'clock position on the passenger side. There may be more leaking. Probably did not get a good seal. May have to run it without the manifold on to ID all the leaks. The engine ran fine, but still more work to do and I got tired of looking at it on Sunday.
 
The truck is back together and running with no fuel or oil leaks. Just forgot to torque down the one injector line.

I need to repair the air line to the boost gauge. It got flattened when it ended up under the manifold. I can shorten and re-route it, but can I re-use that compression fitting that slides onto the line itself?
 
Big T said:
The truck is back together and running with no fuel or oil leaks. Just forgot to torque down the one injector line.

I need to repair the air line to the boost gauge. It got flattened when it ended up under the manifold. I can shorten and re-route it, but can I re-use that compression fitting that slides onto the line itself?
Click to expand...
Glad to hear you're up and running again. Yup, it's hard to keep everything out of the way when trying to get the intake back in place!

You can reuse the nut part of the fitting, but not the ferrule (the little round guy) because it gets crushed the first time the fitting assembly is tightened. You can usually buy just replacement ferrules at hardware stores, home stores or some auto repair stores.
 
n8in8or said:
Glad to hear you're up and running again. Yup, it's hard to keep everything out of the way when trying to get the intake back in place!

You can reuse the nut part of the fitting, but not the ferrule (the little round guy) because it gets crushed the first time the fitting assembly is tightened. You can usually buy just replacement ferrules at hardware stores, home stores or some auto repair stores.
Click to expand...

What size would that ferrule be?
 
I got it back together and was running a heavy load of firewood up to Big Bear in 100 F heat at the base of the mountain. Truck was heating up over 210 so we pulled over to cool it down. Ultimately we decided to turn around with the load and go home. We got a couple hundred yards and one of the trailer tires disintegrated. It's a military surplus trailer with 9.00 - 16LT tires on it. We pulled it off the road and started unloading wood into the truck. A local from the turn off town we came from stopped to offer help. He allowed us to park the trailer in his driveway. We'll grab the rest of the wood today and come back with a flat bed trailer the following weekend to get it home. My son wants to install the 14 bolt full floater axle salvaged from the '95 wreck so we'd have the same size tires as the truck. He does not want to buy more of the military style tires.

The ATT turbo has decided to become noisy. It now has a screaching whistle under load. It seems to be sticky. Not much boost up to 2000 rpm and then I could only get 10 psi max. No leaks on the connection to the manifold. Everything is clean. Spun the turbo and it spins freely with no shaft play. Would like to figure this out.
 
I agree on matching the tires. And I feel the pain of chasing decom mil tires.

Does the turbo only make the noise and act up once it heats up? Loss of boost and noise at same time?
 
Sounds like a leak, check ALL rubber boots & clamps, you had the intake off so check and make sure bolts are tight and their isn't anything under it that shouldn't be..
 
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Drove down and got the rest of the wood from the trailer and brought it back up. Wood is at 3,800' and Onyx Summit is at 8,443'on this route. Turbo is back to barely perceptible and I got it to 13 psi while stomping it. Maybe it was just an extra heavy load of wood yesterday. It filled the Burb to the roof from the second seat back 2x.

Good news, oil leaks are gone. Now I can focus on GMT 800 brake conversion, pump rub fix, etc. We swap in the 14 bolt FF axle. I will order the leaf spring perches for that and the GMT 800 axle and have my welder do both at the same time. These are all the projects that were deferred while I was doing the remodel of the Big Bear home.
 
sctrailrider said:
Sounds like a leak, check ALL rubber boots & clamps, you had the intake off so check and make sure bolts are tight and their isn't anything under it that shouldn't be..
Click to expand...

Son and I went to rescue the trailer on Saturday. I asked him how he had cured the turbo noise from his ATT and he said it took gobs of Permatex to seal up the Leroy intake and then the sound went away. After installing and removing the intake 3x, plus getting some coolant on the drivers side gasket and having piece of paper fall off the metal portion of the gasket, I am pretty certain that there's a leak on the driver's side lower intake manifold. So I'm ordering new gaskets.
 

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