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Old 01-17-2019, 06:40 PM
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Oil pressure goes down to nearly 0 when hot

Hey guys,

thanks for all the information in this forum, I learned a lot so far!
I bought a Helms 30 with an Atomic 4 in it about 2 weeks ago. The problem I have with it is that the oil pressure goes down to nearly 0 (under 10psi) when the engine is hot (it barely changes when changing the revs). The pressure is too low in forwars, neutral and reverse. The temperature goes up to 190 degrees, too. The oil pressure is good whe the engine is cold, though. I already changed the oil to SAE30 (I don‘t know which oil was in it as I bought it). The low oil pressure doesn‘t seem to affect the running performance. I tried to adjust the oil pressure screw, too, but it barely made any difference at all.
The next problem I have, but what I don‘t want to discuss right now (I only write this for your information or because these two problems might? correlate), is that the engine doesn‘t rev to more than 1200rpm in forward gear, neutral and reverse are good.

I‘m desperate right now and have no idea where this could come from.
Thanks for your help/rescue and br
Max
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