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Curtis B.
Curtis B., Technician
Category: Industrial Equipment
Satisfied Customers: 26053
Experience:  Technican turned service manager on multiple lines of equipment used in industry.
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C500-50 lpg forklift no start will crank and kind of run off

Customer Question

Clark c500-50 lpg forklift no start will crank and kind of run off starting fluid just crank no start
Submitted: 1 year ago.
Category: Industrial Equipment
Customer: replied 1 year ago.
Please email me at***@******.*** thanks
Expert:  Curtis B. replied 1 year ago.

When did problem start? After LP tank change? Do you have Impco system? Center spring on regulator, does it have resistance?

Customer: replied 1 year ago.
The guy I got it from said one day it woul not start it sat for some time how would I tell impco system regulator on carb? Electrical has 6.6 ohms res
Expert:  Curtis B. replied 1 year ago.

I under stood it would run on starting fluid? If not have you ran compression test? Have you checked for good spark at plugs?

Expert:  Curtis B. replied 1 year ago.

This is the overhead valve engine?

Expert:  Curtis B. replied 1 year ago.

Impco regulator would have model J regulator

Customer: replied 1 year ago.
it will run on starting fluid it has good spark yes overhead valve
Expert:  Curtis B. replied 1 year ago.

So it is not getting fuel. Do you see regulator?

Expert:  Curtis B. replied 1 year ago.

Look like this?

Expert:  Curtis B. replied 1 year ago.

http://www.ebay.com/itm/like/230575068243

Customer: replied 1 year ago.
No it does not looks like this
Expert:  Curtis B. replied 1 year ago.

http://www.ebay.com/itm/NEW-FORKLIFT-VAPORIZER-PART-11A27-LPG-PROPANE-Regulator-/291572816241?hash=item43e3181971

Expert:  Curtis B. replied 1 year ago.

Is engine full of coolant? This is vaporizer.

Customer: replied 1 year ago.
How about this
Expert:  Curtis B. replied 1 year ago.

If you loosen the lp line, do you have fuel to it?

Expert:  Curtis B. replied 1 year ago.

First is the fuel shut off solenoid, does it open?

Expert:  Curtis B. replied 1 year ago.

First is the fuel shut off solenoid, does it open?

Customer: replied 1 year ago.
If this is what your talking about yes it clicks
Expert:  Curtis B. replied 1 year ago.

Solenoid sends fuel to vaporizer, then to vaporizer, then regulator and carb.

Expert:  Curtis B. replied 1 year ago.

It clicks, but is there fuel to it?

Expert:  Curtis B. replied 1 year ago.

Hose connection on forklift has no gaskets or o'rings. all gaskets should be in bottle.

Expert:  Curtis B. replied 1 year ago.

If connection does not make up, you get no fuel.

Customer: replied 1 year ago.
After checking all look connections cj for fuel at solenoid ok ck fuel at vaporizer ok ck fuel at bottom of carb ok
Customer: replied 1 year ago.
it is almost starting if I hold down primer botton when I let go goes back to cranking
Expert:  Curtis B. replied 1 year ago.

May be bad regulator!

Expert:  Curtis B. replied 1 year ago.

Check any vacuum lines from carburetor..

Customer: replied 1 year ago.
Only has this one
Expert:  Curtis B. replied 1 year ago.

Do you have vacuum when cranking?

Expert:  Curtis B. replied 1 year ago.

IS vacuum diaphragm in regulator holding vacuum?

Customer: replied 1 year ago.
It does not have vac when cranking
The reg does not hold vac ether
Expert:  Curtis B. replied 1 year ago.

Fitting open to intake manifold? And it needs new vacuum diaphragm!