6.2 turbo

[andy howell]

greetings. when i turbo a 6.2 where do i pick up the turbo lube oil from? looks like i may have to drill & tap the block? thanks
andy

[Koots]

There is an oil pressure sender on the back of the engine behind the drivers side head. You can tap into the line running from it, Tee off of it and run to your turbo. Then run the return into the fuel pump hole (using the 6.5TD setup and plate) or you can drill and tap a fitting onto your oil pan to drain back into, if you are still using a mechanical pump.

I highly suggest swapping to an electric lift pump, for multiple reasons. Two biggest points are:

1-the ability to prime the fuel system within a few seconds with some battery power. As opposed to draining batteries, wearing out the starter, the IP and injectors from runnin dry for too long when priming using a mechanical pump

2-you can run a turbo return using the hole in the block. The 6.5TDs have a fuel pump plate with a drain built in, but most aftermarket companies make one with a fitting on it for that purpose as well.

Anyway, good luck on the turbo install! The truck should run like a beast afterwards.

P.S:

I'd replace your rear main seal, if the seal has lost any integrity over time, it will be a leaker once you start running boost.

[andy howell]

thanks koots. i bought '94 4wd dually that has a 6.5 w/ compression on the wrong side of a piston. i thought i would use one of my good running 6.2s to get it back to moving cheap. i have since found a '96 6.5 in a 3500hd truck, one of those with the beam front axle in a junk yard for $500. they said the pump was bad but prolly only pmd or lift pump or the usual. i saw a 6.5 turbo setup on e-bay SELL for $568 (!) the other day so $500 may be a bargain. i will already have the electric lift pump in the '94 if the 6.2 makes it there.
on another note i have the heads off my 2500 & found #8 cracked between the valves. also that cyl pcc cracked. i am gonna try the repair sleeve in the cracked head, will keep posted. this engine never used coolant, block looks perfect w/ no ridge- should take a set of rings great. thanks!
andy

[Koots]

Sometimes those cracks in the head are just there and haven't caused any huge damage yet. There are plenty of people who just throw them back on with a good set of HGs and still run strong.

As long as the block is fine, you can use any set of heads from any of your engines. The 6.5TDs tend to have precups oh the head that are designed for more power. The c-code (light duty) has some of the smallest openings in its precups, which is why they are such good economy engines.

[andy howell]

yeah i'm gonna use the thicker head gaskets. took front cover & pan off tonight & no sludge or anything. a+ for shell rotella T!
andy

[Koots]

Cool, sounds like you got most of it figured out:cheer: