help with valves

Joined
Feb 14, 2010
Messages
16
hi
i am having a problem with valves on a Volvo pent 4.3 V 1995
i adjust the valve lash like it says in manual then give it a full turn to seat them then after ten minutes they are all lose again the only way i can get them too adjust correct is too tighten nut all the way down so it wont turn any more then i run the engine it sounds sweet no tapping i dont no if this is correct please help
 

billy4hp

Petty Officer 1st Class
Joined
Jan 31, 2009
Messages
245
Re: help with valves

hi
i am having a problem with valves on a Volvo pent 4.3 V 1995
i adjust the valve lash like it says in manual then give it a full turn to seat them then after ten minutes they are all lose again the only way i can get them too adjust correct is too tighten nut all the way down so it wont turn any more then i run the engine it sounds sweet no tapping i dont no if this is correct please help

Sounds like the adjusting / lock nuts are worn out and need to be replaced...

Bottoming out the lifter is just masking your problem... Find out what's wrong and fix it...

JMHO...
 

Lyle29464

Lieutenant
Joined
Mar 10, 2009
Messages
1,261
Re: help with valves

I think I would put a manual oil pressure guage on it and check it hot.
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,345
Re: help with valves

Is this a balance shaft V6, if so you torque to 20FtLbs .
 

zbnutcase

Commander
Joined
Sep 19, 2009
Messages
2,055
Re: help with valves

Yes those 4.3s have non-adjustable valves. Tighten and torque as above.
 
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