Radiator Cap lbs??

[Toyo Tech]

Anyone have an idea of what lbs radiator cap to run on an 510 L16? I am gettting some leakage on the overflow hose after my 30min ride home.....spring feels weak, it is 40 years old...

 

 

[ggzilla]

The normal type: 13.7 psi or whatever is normal. Same as american cars of the time. I would not run the Nismo cap as it is much higher, no point in stressing the parts.

[metalmonkey47]

Toyo, go to Autozone and get a sefety release cap. 14PSI and is only around $11 I think? I'll double check and get back at you. I love my car.

[ggzilla]

Yes, a Safety release is useful for removing the cap from a hot radiator. They Regular caps are safe too, but you have to wait until the engine has cooled a bit.

 

You can buy a cap at any local auto parts store, or from Nissan.

[banzai510(hainz)]

theres the pop off relief ones with the leve and the standard type I guess would use the overflow bottle.

 

I cant remeber if 510s ever had them but I know it works good in my Cherokee. I just fill the bottle.

 

 

Toyo best to change out the anti freeze and put 50/50 mix of the green stuff. Helps with cavitation on the front cover.

[datzenmike]

If replacing the rad cap get the newer type designed for use with an overflow bottle. This way if it over-pressurizes from heat soak after shutdown is will siphon back in when it cools down. No more topping the rad up every weekend and wondering where it went.