Datsun Roadster Forum-311s.org

So I think the seal has gone out on my radiator cap. And I cant find a replacement part number. Would like to pick one up at a parts store rather than order. Anyone know the part # for a good radiator cap replacement?

Check the Parts Interchange in the Tech Wiki, I think there is something there for caps.
Linda

make your own perhaps??

Those radiator caps are hard to come by. Pretty sure it is the same for either the 1600 or the 2000. I believe Dean sells a new rubber seal. If you still think your need to replace it, hit up Ross or Mike Young. I am sure they will have one in their stash. They are not available new as I had a 2 liter radiator recored last year and the shop lost my cap. I checked every where to see what was available and came up empty handed. I believe I got a good used one from Ross. So, hang onto those radiator caps as they are hard to get. The over flow tank caps show up on Fleabay new but not the radiator cap.

Steve

Available on Ebay, overflow cap. New rubber for the water tower cap works well.
Linda

my seal was rough on one side. I ended up sanding it and using gasket maker to adhere it to the housing. Going to let set for 24 hours. hopefully good as new.

That should work.

S

S Allen wrote: Fri Apr 10, 2020 3:27 pm That should work.

S

Totally didn’t work lol. Does anyone have one they could sell me? I can order from Dean but it will take forever

Which cap are you looking for?

Cap 1

Cap 2
I'm in Laguna Hills, CA

He is looking for the solid radiator cap.

S

Solex68 wrote: Sat Apr 11, 2020 9:48 am Which cap are you looking for?

Cap 1 $50 Refurbished
cap1.png



Cap 2 $50 New
cap2.png


I'm in Laguna Hills, CA

Have you tested the refurbished cap to make sure it is working correctly?

Nope. It's Refurbished, I'd assume it's fine.

I may have fixed mine. I am going to test tomorrow.

Oddworx wrote: Thu Apr 09, 2020 5:08 pm So I think the seal has gone out on my radiator cap. And I cant find a replacement part number. Would like to pick one up at a parts store rather than order. Anyone know the part # for a good radiator cap replacement?

Cut a new piece of rubber and rtv to hold in place I believe. It is holding up well with no leaks so far but just now starting to run the engine after sitting for awhile. Did this on both caps (radiator and thermostat housing).

Stan is selling them. Check the vendor ads.