Volvo Penta CAV filter thread size

[lustyd]

A cheap vernier caliper and thread pitch tool would be useful? Happy hunting


Thread pitch tool

The trouble is, without knowing which type the thread is I’d need multiple of those and only use them once. That’s ok in a house but on a boat it’s hard to justify. I can buy one of each size barb for less than the thread tools would cost.

Yes I do have calipers on board and will use them to measure

 

[PabloPicasso]

Replace the CAV filter set up with a Racor copy.

Much better in every way

 

[penberth3]

Replace the CAV filter set up with a Racor copy.

Much better in every way

And how does that answer the original question?

 

[xyachtdave]

Replace the CAV filter set up with a Racor copy.

Much better in every way…

….apart from the physical size of the Racor unit of course Pablo!

 

[PabloPicasso]

Yes xyachtdave,you are absolutely right. The Racor is big.


I had the same problem.and fitted a screw on type filter housing with water separator. R12T type. A almost like for like replacement.

 

[PabloPicasso]

And how does that answer the original question?

Solves the issue of replacing a bolt of unknown thread in an antiquated filter system, plus makes filter changes much simpler in future if update completed.

Not an expensive upgrade with copy parts available of good quality for not a lot.of.money.

It's nice to know there are other options out there. Ever tried changing a CAV Filter in lumpy conditions at sea? Not an experience I'd like to repeat.