I noticed the other day that the 86 GXL i just got has had the air pump removed.

The guy who had this car before me is, in the nicest way I can say this, a bit slow.

With out the airpump there the only belt driving the water pump is the alternator belt.

So now i'm thinking that the reason my car overheats when I get on it is because that this belt does not have enough contact area on the water pump pully.

Am I right in suspecting this is the probelm? Is the best way to remedy this problem to get a belt that goes from the crank pully to the waterpump pully or should I put an airpump back in?

Thanks,
Jim

 

sounds like your on the right track there are a few options u can take

1. doulble altenater pullie and run 2 belts
2. i dont know a lot about this but a yoohoo belt
3. run your air pump

 

awesome, I like this idea a lot better than thinking I have a blown coolant seal in the engine.

 

Here is a link to the thread I have on my cooling problem if anyone wants more information. Any and all help is appreciated.

https://www.rx7club.com/general-rotary-tech-support-11/cooling-issue-help-please-727642/

 

Based on your other thred I doubt that is being caused by only a single belt unless that one belt is too loose or is about ready to break. I run my T2 on a single belt and i've seen a highly modified one run on one belt fine until it burned the belt off. So if the belt is tight and in good working order then i doubt a dubble pully will fix your problem.

 

I ordered the yoohoo belt from pineapple racing and new thermostat, and caps from mazda. And something else, I dont remember. We will see what happens.

 

chech your thermostat too! make sure it's not some crappy aftermarket one, OEM FTW.

wait up..... are you really swapping a 13b into a triumph? BADASS!!!!! I love those cars! I grew up with my dad rebuilding those! We had two TR-4's a TR-3a, a TR-7.... Good luck man!!!

 

ordered an OEM on the other day.

Thanks on the triumph. It will be RHD as well. Crazy little car.