high oil pressure ld28

Discuss (and cuss) the Nissan LD-series OHC Six diesel engine, popularly available in the US in 1981-83 Datsun/Nissan Maxima Sedans & Wagons.

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72fj40
Posts: 6
Joined: 11 years ago
Location: christchurch New Zealand

high oil pressure ld28

#1

Post by 72fj40 »

on start up my oil pressure goes real high like 100 top of the gauge so high that it blew the seam on the oil filter. at idle it sits around 40-50 but if you give it any revs it jumps back up

any ideas what the prob is? im running 15w 40 oil
Duaneclark
Posts: 107
Joined: 11 years ago
Location: Peyton Colorado

Re: high oil pressure ld28

#2

Post by Duaneclark »

surprised no replies, this is super late, but two ideas are stuck oil pressure relief valve, and the owners manual recommends 10w30, not 10w40, that might be too thick and especially in winter.
Duane
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