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DISCUSSION FORUMS : Forkliftaction.communicate
Forum: Mechanical Troubleshooting
Brand: Komatsu - Model: FG25C-8
Number of messages: 4

START MESSAGE:
scotty_m
Missouri, United States
I'm having a battle of wits with this forklift and it's painfully aware I'm under I'm having a battle of wits with this forklift and it's painfully aware I'm under gunned. I'm also not that familiar with lp fuel systems.

It has a Nissan H-20 engine that will start right up, and idle just fine, but surges anytime you step on the gas pedal. I doesn't matter whether the engine is warmed up or not.

It has an Impco ca125 air valve, a VFF30 fuel lock, a model J regulator, and a Koshida pneumatic governor. The coolant level is ok, I've put a kit in the fuel lock in order to get a new filter in it. And I've cleaned out the air valve. I've been able to find just enough info on the Impco parts to become somewhat familiar with how they work, but I can not find a darn thing on that Koshida governor.

Can anyone tell me what to look for next?

Thanks,
Scottygunned. I'm also not that familiar with lp fuel systems.

It has a Nissan H-20 engine that will start right up, and idle just fine, but surges anytime you step on the gas pedal. I doesn't matter whether the engine is warmed up or not.

It has an Impco ca125 air valve, a VFF30 fuel lock, a model J regulator, and a Koshida pneumatic governor. The coolant level is ok, I've put a kit in the fuel lock in order to get a new filter in it. And I've cleaned out the air valve. I've been able to find just enough info on the Impco parts to become somewhat familiar with how they work, but I can not find a darn thing on that Koshida governor.

Can anyone tell me what to look for next?

Thanks,
Scotty

Posted 24 Feb 2010 02:54 AM Reply  Report this message
REPLIES: Sort replies by
scotty_m
Missouri, United States
For some reason my first posting came out all jumbled up. This is a second try.

I'm having a battle of wits with this forklift and it's painfully aware I'm under gunned. I'm also not that familiar with lp fuel systems.

It has a Nissan H-20 engine that will start right up, and idle just fine, but surges anytime you step on the gas pedal. It doesn't matter whether the engine is warmed up or not.

It has an Impco ca125 air valve, a VFF30 fuel lock, a model J regulator, and a Koshida pneumatic governor. The coolant level is ok, I've put a kit in the fuel lock in order to get a new filter in it. And I've cleaned out the air valve. I've been able to find just enough info on the Impco parts to become somewhat familiar with how they work, but I can not find a darn thing on that Koshida governor.

Can anyone tell me what to look for next?

Thanks,
Scotty


Posted 24 Feb 2010 05:57 AM Reply  Report this message
edward_t
South Carolina, United States

when you take the cover off the Gov, you see what holds the spring. hold the pin part so that the spring does not turn out and turn the part that looks like it was made for a wrench. turn it 1/2 turn to tighten the spring, then try it to see if that worked, if not go 1/2 turn more and try it, if that didn't do it, go 1/5 turn in the other direction and try it.  

-------------------------
"it's not rocket surgery"


Posted 24 Feb 2010 11:33 AM Reply  Report this message
scotty_m
Missouri, United States
Edward, tightening up the governor did indeed do the trick, however it seems as though that is letting my top end rpm's get quite a bit higher than before. Is there any way around this?

Scotty

Posted 25 Feb 2010 07:01 AM Reply  Report this message

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