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First off, my compression gauge is a cheapo, and I don't think very accurate as far as numbers go, but it is consistent. #1 (damaged) cyl reads 200psi; all other cyls fall between 250-300 psi. I believe the spec is 400. But it runs fine.

So I just installed a set of new 6.5 heads from SSD on my '85 M1009 ($750, approx $900 shipped). Some things I noticed: 1. First, they fit with no big problems. They have a thicker flange around the exhaust ports, which moves each exhaust manifold maybe 1/4" further outboard; this was a little...

The end of the story: finally finished putting the engine back together with rebuilt turbo and the 6.5 heads; runs as well as before once warmed up, but first start of the day means alot of blue smoke and chuggity-chug, even when garaged. Definitely took some damage to the rings on the 200mi...

Further update: Trusted local machinist determined it would be prohibitively expensive to rebuild the bad cylinder head, which was supposedly rebuilt only 18 months ago by Cylinder Heads International (HEADSONLY sellername on FleaBay). Did I mention how much these guys suck? I can't believe how...

Oh ya, the truck's been down for so long I forgot I started a thread about it. Pulled the driver's side cylinder head. The intake valve on the #1 cylinder was loose in the valve guide, you could rattle it by hand. The valve had made contact with the pistion, leaving a scuff mark .06" deep in the...

Further update: Compression test revealed zero compression in #1 cylinder, normal in all others (and it was a real barrel of laughs testing the cylinders under the turbo). At least the bad cylinder isn't on the side with the turbo, then I'd be pulling the engine. Gonna remove the driver's side...

Well, here's an update: New turbo installed, changed oil & went for a test drive. Don't need a compression gauge to tell me it's only hitting on 7 cylinders :( so i've got alot of work ahead of me. Further inspection of the old turbo revealed alot of play in the wastegate pivot-shaft, which...

Oh I think it will help with the spool down of the turbo: Oil comes out of engine supply port thru a one-way check valve to a T-connector. One branch of the T goes to the turbo oil inlet. Other branch goes to the accumulator. While the engine is running, turbo gets oil and accumulator is...

Was thinking about investing in an oil accumulator, plumbed in between the engine and turbo: http://www.summitracing.com/parts/mor-23930/overview/ Anyone have any experience with these?

Well I wrestled the old turbo off -- it's toast alright, noticeable side-side play in the main shaft, but no obvious missing pieces. Looking down the inlet, the compressor housing doesn't show any signs of contact, so hopefully the problem was on the impeller (exhaust) side. I won't have time to...

Yep I had one of those bust loose on me once. I think I drove a feeler gauge in between the pinion yoke and the "dirt deflector." Alternately, you could use a hammer & punch to puts some dents in it around the circumference to hold it against the yoke.

Putting a turbo on my M1009 has definitely been the best mod ever, but things got a little rough this weekend. My girlfriend & I set out on a 4-hour road trip to a camping party. We were about 2 hours into it on I-86, with the truck loaded to the ceilling with our camping gear, pulling a 4X8...

Ya it sure is. I wrapped the manifold with header wrap and still had hot-start issues until I put spark-plug wire insulating sleeve around #4 & #6 injector lines. See my thread "M1009 lift/turbo buildup." The '93 6.5TD turbo-donor engine had a 8" wide metal heat shield that attached to the valve...

For the oil supply line I used the stock one from the '93 donor 6.5TD (looks like AN-4 maybe? about 1/8" ID) which threads into the port normally used for the oil pressure sensor at the driver's rear of the block (I remounted the sensor at the other end near the turbo). It wasn't long enough but...

On my install, using parts from a '93 6.5TD, the driver-side manifold would not clear the oil cooler lines, so I ended up re-using the 6.2NA driver-side manifold. The crossover pipe is 1/4" larger dia. than the stock exhaust, but was still able to mate with the stock manifold after I elongated...

I've been running a Walbro FRB-22 (similar to FRB-5) electric fuel pump for 3 years now. In general I'm happy with it (self-priming, biodiesel compatible, pumps only on demand, built-in cleanable pre-filter). But for anyone thinking of getting one, they do have one major design flaw: The pump...

Hey DXTAC, Tell me more about the centrifuge system you may want to part with, including price. PM please. I've been running WMO for a while in small concentrations and haven't blown anything up yet...

Yowza. Well thanks for the info, convinced me to never buy a motor from GL. Boat anchors are not in my budget.

For anyone who wants to shoe-horn a couple group 35 truck batteries under the hood instead of the giant 6TL batts, here's the setup I came up with. The whole thing is made out of recycled box-spring mattress frame channel (1.5" sq L-channel). It attaches with (3) bolts thru the pass. inner...

Not sure about being made by Eaton, but the Flea-Bay listing for mine was: 225S10 Detroit Locker No Spin GM Chevy 10.5" 14-Bolt FF I see some other lockers listed there as Eaton, which look identical, but they are around $700 and for different applications.