Canadian mk1 oil cooler bypass

[RichardT10829]

Typical !

Does anyone have any dimensions of the spring and ball ?

[rob love]

I think I have a spare assembly out in the shed. I am heading out that way now, and if I can find it, I'll measure it up. The manual gives the ball size as 9/16th.

[RichardT10829]

Thanks Rob... If there is a way of measuring the tension of the spring that would be cool..

[rob love]

I don't have a way of measuring the tension, but here are the dimensions: Spring is just over 1" long (1.05) and just over 1/2 in diameter. The diameter of the spring material is .0625 (which is 16 gauge).

Spring is adjustable, so the overall tension will not be that critical as setting it properly.

[RichardT10829]

Thank you very much Rob, I had a read up about setting it as you said using an air line

The ball and spring are the easier bit, the adjusting screw is a bit harder for me, that said I reckon I could machine one up .

[charlie fitton]

Originally Posted by RichardT10829

Thanks Rob... If there is a way of measuring the tension of the spring that would be cool..

have a fixture for measuring valve spring tension...

[rob love]

There are fixtures for measuring springs at different lengths of their compression. But since these are so easily adjustable, there is just no need for it. There was plenty of room for adjustment in the housing, so a longer spring would be OK too. It is just a matter of setting the opening pressure.

Richard: You never mentioned you were missing the adjuster (ctl 7122) as well.

[RichardT10829]

Yeah sorry the entire guts of the thing have been nicked. So I need 100411, 7123, and 7122 :-(

[Lynn Eades]

Rob, If you give the number of turns, that helps.