How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Wayne Your Own Question
Wayne
Wayne, Journeyman
Category: Industrial Equipment
Satisfied Customers: 9332
Experience:  worked on lift trucks, and IR air compressors
6825259
Type Your Industrial Equipment Question Here...
Wayne is online now
A new question is answered every 9 seconds

Gas engine forklift backfires when idling and has no power

Customer Question

Gas engine clark forklift
backfires when idling and has no power 9wantys to die when put in gear)
Submitted: 1 year ago.
Category: Industrial Equipment
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

when was last time you adjust the valves

Customer: replied 1 year ago.
just done, two valves were stuck and bent two pushrods. freed up the valves and readjusted
Customer: replied 1 year ago.
adjusted all valves to .010
Expert:  Wayne replied 1 year ago.

Thank you for that

the valves that were stuck, did you replace them

Reason I ask is that , once they stick

they will not seat correct, and this sounds like your issue

I hope this helped you

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

Customer: replied 1 year ago.
did not replace valves, machine had been sitting several yrs just lubed them and tapped on em and they freed up
Expert:  Wayne replied 1 year ago.

OH,

OK, well that is your issue, they are not seating

I suggest you replace them

lap in new valves , this will clear up your issue

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

Customer: replied 1 year ago.
I do not think the two valves that were stuck is my problem, I have a hunch it is my timing chain, I will do a compression check Monday and if I have a compression problem you will get a good rating, if there is no low compression readings odds are I need to replace the timing chain, which is a bitch on this machine. I woulds think that you would ask for a compression check before you made an analysis.T Dahl
Expert:  Wayne replied 1 year ago.

HI

The reason I did not ask for a compression Ratio

is the fact that 2 valves stuck, and that would throw off any compression test

But yes this is good Idea

what would better as a engine re-builder for 34+years

is a cylinder leak down test , that would say exact where it is

dollar to a doughnut , it is valves

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

Expert:  Wayne replied 1 year ago.

Hi

I am just following up with you

did my answer help you

let me know , Please

Wayne

Customer: replied 1 year ago.
I finally did a compression check and all cyl tested 160 psi, also did leak down which tested OK. Finally re-timed the distributor and motor is running OK..... For that reason I am not giving you a rating, had I followed your advise, I would have done an un-necessary valve job Thanks T. Dahl
Expert:  Wayne replied 1 year ago.

Morning

Thank you for that

Glad it is running

Wayne