ajk2004
Aluminum
- Joined
- Oct 12, 2014
- Location
- Fort Dodge, IA
Hey guys,
I have probably a mid 60's CAT/Towmotor 750S forklift. I can't really find a whole lot of info on the forklift itself but have found a few service manuals for the engine. I'm not 100% sure what the engine that it has. I believe it is an F245, but I could be mistaken. It is a 6 cylinder engine. When I bought it, it was very hard starting and wouldn't run very good. I tracked down the mechanic that used to service it regularly and he was pretty sure it needed a valve job. So, that is where I am starting. I managed to get the head off yesterday afternoon and it looked surprisingly good. I was expecting to see a burned valve or two but nothing looked too bad. I haven't got the valves out yet so I don't really know what the valve seats look like. I could see a TON of carbon build up on the underside of the exhaust valves. Looked really junky.
So, my first question is, how do I get the keepers off of the valve? I can't seem to find any detailed visuals or video on how the keepers come off. I am used to the automobile style but these are different and I was unable to figure out how to get them off. Have any of you guys done this before? I saw a picture on the internet and it looks like there are split keepers on some of these but then other people talk about a pin.
The other thing I might run into is I am doing this procedure with the engine in the forklift. These engines are super hard to get to and taking the engine out of the machine seems like to much trouble for this machine. I am hopeful that the valve seats look okay and their surfaces look okay, at least enough to lap to try to bring the surface within spec again. Has anyone ever pulled the seats and installed them while the engine is still in the machine? Thanks in advance for all of the help. I sure appreciate it!
Andy
I have probably a mid 60's CAT/Towmotor 750S forklift. I can't really find a whole lot of info on the forklift itself but have found a few service manuals for the engine. I'm not 100% sure what the engine that it has. I believe it is an F245, but I could be mistaken. It is a 6 cylinder engine. When I bought it, it was very hard starting and wouldn't run very good. I tracked down the mechanic that used to service it regularly and he was pretty sure it needed a valve job. So, that is where I am starting. I managed to get the head off yesterday afternoon and it looked surprisingly good. I was expecting to see a burned valve or two but nothing looked too bad. I haven't got the valves out yet so I don't really know what the valve seats look like. I could see a TON of carbon build up on the underside of the exhaust valves. Looked really junky.
So, my first question is, how do I get the keepers off of the valve? I can't seem to find any detailed visuals or video on how the keepers come off. I am used to the automobile style but these are different and I was unable to figure out how to get them off. Have any of you guys done this before? I saw a picture on the internet and it looks like there are split keepers on some of these but then other people talk about a pin.
The other thing I might run into is I am doing this procedure with the engine in the forklift. These engines are super hard to get to and taking the engine out of the machine seems like to much trouble for this machine. I am hopeful that the valve seats look okay and their surfaces look okay, at least enough to lap to try to bring the surface within spec again. Has anyone ever pulled the seats and installed them while the engine is still in the machine? Thanks in advance for all of the help. I sure appreciate it!
Andy