I had someone tell me it can't be done...you can't put a turbo 6.2 diesel in a M37.... don't ever tell me I can't do something..
After I got the motor in which is sitting good in the frame. Only problem would be having to change the glow plugs would require removal of the inner fender and tire to get to them. Otherwise no clearince issues.
I then put the front fenders on and found a little clearance issue with the turbo.
So I got out the welder and mad a slight modification to the fender. Now it fits.
I have to modify the inner fender/splash shield now but I knew that going into this project that it would need some modification. If I could keep from running out of welding wire maybe I'll get all the modifications and welding done before the end of summer and I can get this thing to the blasters.... keep your fingers crossed.
That's a hmmv engine, no? You must have some OD vaseline to get that in there!!!
-John
Member of Dixie Division MVC
1953 USAF M37 wow, restored
1962 M151 Ford Production, on the rotisserie now
1953 USMC M37 w/w -in storage
1942 M6 Bomb Service Truck (sold to UK collector)
1967 M116A1 Pioneer Trailer
1968 M101A1 Trailer
S-89 Comm box
Maybe whom ever told you it couldn't be done should have used different wording; something like "it can't be done unless you torch over half the fender off." That isn't my style, but that's just me. If you're happy with the outcome, that is what counts.
Good looking job!, I just want to warn you about installing the turbo on a 6.2 engine as the 6.5 has lower compression. In 1996 I worked at a Chevy dealer and we had a customer that installed a new 6.2 and a turbo from the newer at that time 6.5 that engine and two more only ran for just over 100 miles.The Goodwrench engine that was installed carried a 3yr 50k warranty. when the third engine was installed the factory rep put a warranty stop on that vehicle and customer was on his own. The engines were burning holes through the pistons and just could not take the extra boost.You might do further research to make sure this will not happen to you! maybe since that time there have been component's developed to remedy that problem of turbo charging the 6.2 . Good luck! we hope to see the progress and the finished product in the future.
hb
The wiseman who listens to his students stays a wise MAN!
hb wrote:Good looking job!, I just want to warn you about installing the turbo on a 6.2 engine as the 6.5 has lower compression. In 1996 I worked at a Chevy dealer and we had a customer that installed a new 6.2 and a turbo from the newer at that time 6.5 that engine and two more only ran for just over 100 miles.The Goodwrench engine that was installed carried a 3yr 50k warranty. when the third engine was installed the factory rep put a warranty stop on that vehicle and customer was on his own. The engines were burning holes through the pistons and just could not take the extra boost.You might do further research to make sure this will not happen to you! maybe since that time there have been component's developed to remedy that problem of turbo charging the 6.2 . Good luck! we hope to see the progress and the finished product in the future.
hb
Thanks, HB... Yeah I've done a boat load of research and talked to a lot a people. The two things I've found from talking to those who have done it and been successful at it is to buy the thicker head gasket as that helps lower the compression ratio and to only turn the IP up a little bit. Also to change to the 6.5 injectors as that changes the amount of fuel popped into cylindar. I have a few dozen webpages printed out for reference when I get to that point.
You might wish to revisit your info on the 6.2 versus 6.5 injectors... the 6.5 turbo injectors have a higher pop pressure, 142Bar (~roughly 2,100psi) as I recall, whereas the stock 6.2 injectors open at about 1,850psi. Doing this injector change to 6.5 turbo injectors while using stock 6.2 injection pump SHOULD cause the injection timing to be retarded. The 6.2NA & 6.5NA injectors both open at same pressure, 126Bar (~1,850psi)... no gain.
Are you changing injection pump to 6.5 version as well?
And note: contrary to popular myth, marine injectors won't give you a 40 horsepower increase...
Tanner: I'm a long ways away from worring about injectors. I still have more fitting and fabricating to do, then take it all apart and send everything out to be media blasted, then prime and paint then reassemble...in the meantime take the motor down to the block get it all clean, new gaskets and seals, new harmonic balancer, have the heads checked and valve job done if need be and then start putting it all back together, and look at injectors and the IP. Believe you me I plan on revisiting everything I have gathered on the subject.
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