Another TR4 oil pressure issue

[MKTR]

Hi all,

I have searched the forum and not found the answer to my issue. 

Whilst investigating a slight leak around my spin on oil filter I decided to check the relief valve operation. It has been fine for many years but now the pressure just keeps rising with revs and does not find the relief spot. When I back the valve screw off the pressure does drop but still does not find its maximum to relieve.  Any thoughts before I disassemble the whole lot?

I also see conflicting advice on setting the relief valve - is it a cold or hot engine? 

Many thanks 

Mark

[trchris]

Hi Mark 

l would remove and check both the spring and ball for wear and clean the seat for what it costs replace both as for hot or cold engine it makes no difference as the valve will open as soon as the pressure is reached however a cold engine is easier to work with

Chris

[MKTR]

Thanks Chris - just realised that I posted in the general forum and not TR4 - will move across

Edited August 6, 2024 by MKTR
update