GQ Patrol Valve Clearance on GAS

Submitted: Wednesday, Sep 24, 2003 at 12:23
ThreadID: 7399 Views:2458 Replies:2 FollowUps:0
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Would anyone be able to tell me what the valve clearance should be for a 1992 GQ 4.2 EFI running Petrol\GAS.
Does this differ if the vehicle is running GAS or not.
Any advise would be much appreciated.
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Reply By: mimar - Friday, Sep 26, 2003 at 03:01

Friday, Sep 26, 2003 at 03:01
Hi Dean

Valve clearance does not differ if the vehicle is running on gas or petrol, only timing differs. However with EFI engines computer management should compensate for that. If it doesn't (car feel slugish) then for LPG advance 6-8 degree.

Cheers

Marian
AnswerID: 32043

Reply By: Member - Stephen- Friday, Sep 26, 2003 at 15:44

Friday, Sep 26, 2003 at 15:44
Hi Dean,
I have a GQ on petrol /gas but is not EFI , I had been told to set the valves @ .50mm , it is supposed to have more power and better economy .I tried it at that setting didnt feel any better , but the rattell coming from the rocker arms was to noisy so i reset them back to standard.So your better off leaving them as they are.
REgards , StephenjNQ.
AnswerID: 32116

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