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Short version. Hose flapper restricting fuel flow at the IP fitting.

Set of gapless rings good heads and it could be on it's way patched for cheap. Yes the machine work gets expensive along with new OS parts. Than you look at wear in the rest of the engine. BTW That's not horrible blowby. I have run worse. It's also a failed oil fill cap regardless of blowby...

What GM did with this disposable engine is frankly an embarrassment. You will need other engines to validate the need. Are you solving one of the many deficiencies with this engine and/or a hot rodding problem in general? What about loosing oil pressure with them? So you want your engine to...

IMO the better solution is just coat the pistons. Are you reducing the compression ratio? At some point the engine oil can't take the heat with uncoated pistons and no squirters. Like EGT 1550, ATT, and a spool valve on 6.2L NA precups. I read somewhere the factory tooling nicked the bottom...

To close out the question of leaking PF-48 Oil filter: This van went through FOUR oil filters all leaking/loose before one year or an oil change light tripped (generally less than 3000 miles for a leak.) AMSOIL, Wix, AC Delco, brands all leaked. All GM Dealer installed during an oil change or...

It's got 200K on it, PERIOD. At 250K the truck starts to fall apart around the engine. It's frugal to run older vehicles, but, at some point you may want to get it down to two reliable vehicles and spend your time doing something else than major repairs like collectively we do on the 6.5TD rigs...

Watch the return line during the first crank of the day. It can be full of fuel, but, turn to air as the IP gets purged of air during cranking.

Look what showed up in the mail today! Now to figure out doing the actual job of putting them in... The "oil" preservative was a nice touch. Had to look close at these small parts to see the coating.

No. Check the oil level if you suspect something. Simply find where the leak is coming from. Warning high pressure diesel leaking (fine high pressure spray) will puncture your skin and you can loose your hand or die from the injury. Yes it's serious and dangerous. Use cardboard or a broom...

Again as I wrote in post #268: look for bubbles to see what side or both be the problem with T stat crossover removed. Remove valve covers and see if you find the coolant leak plain as day around a stud. We are assuming it's head bolts or gaskets vs. cracked block, cylinder, head. Coolant in...

ATT, CKO HX40II, and something off a 4 banger ... oh wait that's a GM3 Asthma Attack turbo. I believe the ATT kit isn't made anymore. The Mitsubishi TD-07 turbo and knock-offs without mods to fit a 6.5TD still is. It was a hellva stigma to break "use a better bigger turbo" Neither the ATT...

I read combustion pressure in the cooling tank not water in oil. Do you have both problems?

@JiFaire The following thread needs to be a sticky in the technical reference library. I have suggested it before years ago and it was overlooked. It may have just cost Rodd a re-do on the head gaskets. https://www.thetruckstop.us/forum/threads/head-studs-what-will-stop-the-leak.47879/ @Rodd...

If that's the case... that's CAT's disposable engine...

The fun part: The retaining ring requires a special tool, easy to make I read , to install with a press.

Wasn't really looking just checking if it was even available and I tripped over a NOS IP gear. I ordered both gears as NOS as the cam gear is more common to find. Do you coat both gears? Does the coating affect the clearance of the gears? If so I would need to add a shim. Cam gear major...

Can they also run this off the oil pump drive sensor the 1993's had? (And used for the factory ECM controlling the 4L80E) Maybe whatever parts are in the best shape is the question as the oil pump drive sensor would crack the housing. (I sealed mine up with RTV.)

1993 doesn't need it. The water pump, reverse rotation or not, and it's backplate are a different. I have run a 6.2L cover on a 1993. I believe the chain oil splash deflector for the CDR was the only thing I left out of the 6.2 dropped into the 1993 because it wasn't needed. Other than the water...

If it's still a no start... Or the next time it doesn't: Offhand you need 9V at the small wire and 11V at the large wire minimum for the starter to work. Measure with a voltmeter. 9V or more at the small wire eliminates the ignition switch. (With the ign switch in start of course.) Likely the...

Use two exhaust manifold gaskets and header wrap the manifold. Then the 6.2 injectors will work. Not easy to remove, but, will work. This way you have matched injectors IF the 6.2 injectors are good. That's a lot of blowby. Combined with the rear main oil seal leak the engine could have worn...