Time to sort this out. Predictable Oil pressure/buzzer

[KarlT]

Hi,
My 2.1 DJ is lovely. Done 105,000 miles, Runs sweet, starts first time every time, uses no oil or water, good compression but......................

If I'm on a long hill/climb on a hot day the buzzer will come on. I use 15/40 grade (high mileage) oil. On one oil change I put that slick 50 stuff in & it was very hard to make buzzer come on, really had to work/abuse it!! I know when it will do it & when it will stop.

I'm thinking it must be a worn oil-pump. What do you think? What else could it be?

[Simon Baxter]

Worn big ends or mains.
Stuck pressure relief valve (unlikely)
Worn pump (unlikely)

[KarlT]

Unlikely you say, not what I wanted to hear. Will check oil spring thing. Cheers anyhow Simon,