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Greenmech safetrac low oil pressure.


jmac
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It could well be a faulty sensor, GreenMech used to sell a few when the Isuzu was the weapon of choice.

Try , just for test purposes , disconnecting the brown wire from the oil pressure switch , insulate the end of the removed wire then start the engine. If the problems gone then it’s a faulty switch or low oil pressure and needs checking out before the chipper is used.

The oil pressure from memory could be close to 100psi on cold start up , this would be on a new engine and I think the switch closes at 12psi ?

 I can confirm this from the Isuzu engine manual tomorrow..

Jase.

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Thanks for the replies. I changed the oil recently and its at the correct level. To check the actual oil pressure am I right in thinking I should fit a gauge in place of the pressure switch? If the pressure is low fit a new pump? 

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Yes the gauge fits where the oil pressure switch is fitted , an 1/8 " bsp thread from memory..

Unfortunately if it's low oil pressure that's causing the problem it's not normally the case of just fitting a new pump , it's due to excessive wear throughout the engine..

Don't panic yet , could well be the switch..

Edited by Jase hutch
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