Morris Minor Owners Club

Just fitted new set of plugs - how much should you tighten them?

Oil pressure guage reads just under 40 on tickover - when revving up the engine it go up to about 80. Is that normal? Can't say I've ever noticed it before!

Is the sump nut usually really really difficult to undo?!

Thanks

1 - I usually tighten them up until they pinch

2 - Mine sits about 40 when ticking over and goes up to about 60 when driving along

3 - When I first did an oil change on my car the sump plug was really really tight or I hadn't had my wheatie bangs . I don't do it back up as tight as it was, just til it pinched.

Nipped up for spark plugs - using a speed wrench and socket. 80 sounds high when revved up - possibly that's just with cold oil. Sump plug -make sure you are turning it the correct way! It should not be stupidly tight - just firmly nipped up against the copper washer.

Thanks both - just going out to get some Shredded Wheat

I'll check the oil pressure again when out on a drive - I agree that 60 sounds better.

The relief valve is at 60 as standard - yes, it can be packed up slightly to get a bit more, but it's not necessary for a standard engine. The gauges are notoriously inaccurate anyway! When cold/thick oil - the pressure can rise above the relief valve setting - but when hot it will sit on the relief valve.

bmcecosse wrote:The relief valve is at 60 as standard

I'm sure its 75 as standard

Nope - Cooper S had stronger spring for higher pressure - but 60 is the norm for standard engines. Variations of course depending on age of spring etc - and accuracy of gauge!

The quick-lube shops have a habit of making the drain plugs overly tight, as they don't want leaks or come- backs.

Not sure how the smiley got in the wrong place, sorry about that.