Anyone Have A Dig.picture Of A 6.2 They Could Post?

[GREASE SHEIKH]

I have been trying to determine for sure that my rig has a 6.5 replacement engine, not the 6.2 it originally came with. Most of the evidence suggests that it is, but the machine pad with the actually manufacturing date stamped in is impossible to find. One thing i have heard from several people is that the fuel injectors on a 6.5 come in at a different angle than on a 6.2; but i don't know anyone around here with a 6.2 so i would like to see a picture of one that i could compare with mine. This is a non-turbo, formal postal truck (P-30 with union city body).
If anyone has a picture that clearly shows the injectors, please let me know if you could post them. Mainly i am trying to figure out just how new the engine is before i invest any more in the rig (like painting it, etc.)
thanks!
Paul

[LDPosse]

I'll see if I can get a good pic of my 6.2 tonite, it's not in the garage and it's already dark, so I don't know how it'll come out.

[LDPosse]

Got the pics. The first one I found on my camera from when it was on the engine stand, the others I took tonite, it was pitch black outside so I couldn't tell where I was pointing the camera. If you can't determine what you need to from these pics, I can take some better ones tomorrow.

BTW, if you look in the background by the computer screen, you can see some of my BioD stuff sitting around, as well as a washed test batch :D

http://68.83.10.185/frybridpics/Rear%20of%20Diesel%20on%20Stand.JPG

http://68.83.10.185/frybridpics/Pass%20Side%20of%20Diesel.JPG

http://68.83.10.185/frybridpics/Driver%20Side%20of%20Diesel.JPG

http://68.83.10.185/frybridpics/Driver%20Side%20of%20Diesel%202.JPG

[GREASE SHEIKH]

thanks a lot for taking the pictures! Wow, you must be pretty good to be able to take out an engine like that. What are you fixing on it?
Paul

[LDPosse]

My truck was originally a gasser, I took the 6.2L out of a beat 1989 C1500 chevy, and put it in my truck. The picture there on the stand was taken while I was trying to sort out the wiring harness, as you can see the only wires I had on the motor at that time were the high current ones for the glow plugs.

The only things I really did to the motor itself while it was on the stand, was I put a new harmonic balancer on it, and put new injectors in. Both jobs were a piece of cake.

[luckys420]

did you have to change the gearing in the truck at all. i have read some discussions where people say you have to also swich out the transmision and/or the rear end. is this true?
thanks
will

[LDPosse]

Will -

I did not make any changes to the gearing on my truck. It had 3.73 gears in it already, which are a great match for a 700-R4 transmission (4 speed overdrive automatic), whether used with gas or diesel. There is plenty of pickup in 1st gear, and the .70:1 overdrive gives me a cruising RPM of 1800 at 65 MPH.

My truck had a 700-R4 transmission with the gas engine, but I took it out and replaced it with the 700-R4 from the 1989 donor truck. The diesels have a specific torque converter with a lower stall speed. The transmission governor is also calibrated to shift at a lower RPM than a gas tranny.

A gas transmission could be used in a pinch, but you wouldn't want to do any wide-open throttle acceleration, because the diesel engine would be bouncing off of it's redline before the trans would ever shift. You would also lose some effeciency due to the higher stall speed of the gas converter.

The rear end gears are much more critical in an application utilizing a non-overdrive transmission (most 4 speed manuals and 3 speed automatics, i.e. SM465 and TH400).

With a non-overdrive transmission, you would probably not want to use a gear ratio lower than 3.08 or 3.23, unless the vehicle was going to be strictly for in-town use with only limited highway use. Of course, you could always run down the road with 4.10 gears and no OD. I understand that the motors will take it, but fuel economy will suffer greatly, and all the racket will probably drive you nuts.