need help w rad cap ASAP

[Piper]

hi

We're at the point of starting our Mk2 but don't have a rad cap. I know we can run for a bit without 1 but need it for longer trials. The cap was long ago stolen during vandalism. It looks like a 2" threaded cap is required. Does anyone have any leads on what to do, can use as substitute, ... Is there an aftermarket part available??

Please help!

Cameron

[Jordan Baker]

If its the original Carrier style then I think you need the proper kind of cap.

On my UC I have the original rad but sometime in its past life the big screw on brass thing was changed for a standard type of neck. When I needed a new cap I just bought one at Cnd Tire for a few bucks.

You should be able to get by with a rag stuffed into the hole to do a longer engine test.

[rob love]

I ran for years on an open rad. I believe the pressure is only 3 lbs, so it really isn't raising the boiling point that much. A proper mix of antifreeze (60/40) will also reduce the chance of boiling over. After all, you will only be driving in parades, not the African desert.

Once things warm up here, I think I might have an extra cap buried in the spare parts pile (but no guarantee)

[Piper]

thanks Rob, I think we'll just run it as it is right now then. That is of course, if we get her running!

Cameron

[Stewart Loy]

Cameron,

If you need one of these, I know there is one near Woodstock, out in the woods.


Stewart

[Piper]

yep! that's the 1!! We have the overflow portion which fits into the ~1" rubber tube but not the cap. As is on the top of the rad right now, there just is the threaded part (affixed to the rad) which has a male thread on it roughly 1 3/4" in diameter. If you want to sell the one you have PM me and let me know what you want for it.

Thanks !

Cameron

[Neil Ashley]

It would be usefull if someone could confirm the correct size box spanner needed to undo one of these. I am currently using something I made up myself.

If anyone has an original spanner for sale I would be interested.