First, it's great to be a part of the forum!
To the main point of this post ... I just picked up an old 1974 John Deere 510 backhoe. The machine came with a 4270DR-02 engine. Unfortunately, the block has a gaping hole in the driver's side (the reason the machine was taken out of service).
As part of the machine's purchase, I also received a John Deere 4239DF engine (out of a 1985 air compressor). I was told I could install the 4239 engine in place of the 4270 engine, but I am already seeing potential issues (motor mounts, starter and injection pumps on opposing sides, etc.).
The limited info I have been able to find on these engines leads me to believe they are both "300 series" engines. I have no doubt I can easily address the diffferences noted above. My main concern is whether or not flywheel/flexplate, bellhousing bolt pattern, and front engine mount to hydraulic pump are the same or can be relatively easily adapted?
I will obviously know more, once I get the bad 4270 engine out of the machine and can compare the two engines side-by-side, but any advance help/info is greatly appreciated.
To the main point of this post ... I just picked up an old 1974 John Deere 510 backhoe. The machine came with a 4270DR-02 engine. Unfortunately, the block has a gaping hole in the driver's side (the reason the machine was taken out of service).
As part of the machine's purchase, I also received a John Deere 4239DF engine (out of a 1985 air compressor). I was told I could install the 4239 engine in place of the 4270 engine, but I am already seeing potential issues (motor mounts, starter and injection pumps on opposing sides, etc.).
The limited info I have been able to find on these engines leads me to believe they are both "300 series" engines. I have no doubt I can easily address the diffferences noted above. My main concern is whether or not flywheel/flexplate, bellhousing bolt pattern, and front engine mount to hydraulic pump are the same or can be relatively easily adapted?
I will obviously know more, once I get the bad 4270 engine out of the machine and can compare the two engines side-by-side, but any advance help/info is greatly appreciated.