Mike L
Senior Member
I’ve got a customer with a NH-220-IF (industrial fire pump) which is a backup sprinkler system engine for a wood mill. Was leaking coolant from the head gaskets and bubbling compression while running. Removed heads and found pistons pretty beat up. Customer wanted to rebuild engine. Lo and behold, it’s pretty damn hard to find parts for a 1973 engine. Took heads to machine shop to be checked. They called to and said the injector tubes were leaking and they didn’t have the parts or tooling to do the job because the tubes were larger than normal?
I called around and found a running big cam 350 out of a fire truck. Customer says no that they need to stay with the fire pump engine. The current engine is just a back and basically runs at 1000 rpm’s. I have limited experience with these so I’m wondering why the big cam wouldn’t work and why would the current engine have larger injector tubes? CPL028 serial number 10264739
I called around and found a running big cam 350 out of a fire truck. Customer says no that they need to stay with the fire pump engine. The current engine is just a back and basically runs at 1000 rpm’s. I have limited experience with these so I’m wondering why the big cam wouldn’t work and why would the current engine have larger injector tubes? CPL028 serial number 10264739