Thread: identifying a GM diesel engine?

Originally Posted by Sprint

a friend has a GM diesel engine sitting in his shed, and to the best of anyones knowledge it dates from the mid-late 50's

how would i go about identifying it? (model number, etc)

It should have an ID plate on it giving the model code and the specification it was built to. If missing or painted over, get the number off the block, send the number and a photo to MTU Detroit Diesel Australia.

If from the 50's it is most likely a 3-71, 4-71, or 6-71. Maybe a 110 series but these are rare.

Originally Posted by Brian Hjelm

It should have an ID plate on it giving the model code and the specification it was built to. If missing or painted over, get the number off the block, send the number and a photo to MTU Detroit Diesel Australia.

If from the 50's it is most likely a 3-71, 4-71, or 6-71. Maybe a 110 series but these are rare.

More likely to be a 53 from that era. One thing's for sure, it's not a 60 Series.

all i can find is a model code of 6080....... the rest is unreadable

Originally Posted by Sprint

all i can find is a model code of 6080....... the rest is unreadable

That seems to be an older model code than any in my DDA manuals. How many cylinders? In-line or V? What was it used in?

first digits of the serial number appear to be 6A, which makes it a 6-71..... a bit overkill for what i'd had in mind for it i think

If it is a 6-71N in automotive rating is is rated at 238hp @ 2100rpm, 600 ft/lbs @ 1600 rpm, weight with normal automotive accessories, fan to flywheel 993 kgs.

was thinking it might be suitable for a repower on a 1960 F600.....

the only listing i could find online for a 6-71 in a 6080 model was in a LARC

No wucking furries as a repower for an F600 except top speed may be unacceptable. May need to change the trans. and the diff ratio. Don't know what rating was used in a LARC, suspect not 238hp. Easy to change anyway. Just whack in the right injectors and re-calibrate the governor.