ozconnection Posted May 24, 2008 Share #13 Posted May 24, 2008 Speaking of fans, some years back I noticed that some cars got 7 blade fans and some got 8 blade fans. Probably the 74-78 factory AC cars got the 8 blade ones. Don't know how much difference it makes but, since then, I've always used the 8 blade fan. I don't mind you using my photo for this topic, just say who ya got it from. Cheers:paranoid: Link to comment https://www.classiczcars.com/topic/28205-engine-cooling-questions/?page=2#findComment-248636 Share on other sites More sharing options...
sblake01 Posted May 24, 2008 Share #14 Posted May 24, 2008 Sorry Mark. Not wanting to pull the fan off of one my cars to show the difference, it was the only one I could find. Got that a while back so I didn't recall where it came from when I posted it. I marked it in case I ever need to use it again. Link to comment https://www.classiczcars.com/topic/28205-engine-cooling-questions/?page=2#findComment-248649 Share on other sites More sharing options...
d240zx2 Posted May 25, 2008 Share #15 Posted May 25, 2008 What BeanDip said, yes, ditto.My original, but re-seamed and rodded radiator with a 180 thermostat serves quite well. I have never seen the temp above 200, even on a 95 degree day with air running and in slow, stop'n go traffic. Track temps never exceed 190 and I am really hammering it then. The key, I think, is total system health. Regards,Frank Link to comment https://www.classiczcars.com/topic/28205-engine-cooling-questions/?page=2#findComment-248727 Share on other sites More sharing options...
AggieZ Posted June 21, 2008 Share #16 Posted June 21, 2008 If your fan clutch is going out, you might want to consider replacing the fan clutch with an electric fan. Particularly if you spend a lot of time in stop/go traffic with an air conditioner running. If you do this mod, you will also need to upgrade your alternator to at least a 60 amp... which is still pretty whimpy. Link to comment https://www.classiczcars.com/topic/28205-engine-cooling-questions/?page=2#findComment-251427 Share on other sites More sharing options...
m4xwellmurd3r Posted June 21, 2008 Share #17 Posted June 21, 2008 If your fan clutch is going out, you might want to consider replacing the fan clutch with an electric fan. Particularly if you spend a lot of time in stop/go traffic with an air conditioner running. If you do this mod, you will also need to upgrade your alternator to at least a 60 amp... which is still pretty whimpy.it's really easy to rebuild those clutches as long as the rubber seal isn't bad. Took me maybe 30 minutes to pull the fan, take it apart, clean it, fill it back up with oil, and re-install it. locks up like it should now. maybe even a little too well, but it's better than it not working at all. All it takes is a bottle of that stop leak additive that's as thick as honey. Link to comment https://www.classiczcars.com/topic/28205-engine-cooling-questions/?page=2#findComment-251441 Share on other sites More sharing options...
sblake01 Posted June 21, 2008 Share #18 Posted June 21, 2008 I've rebuilt them too but I wouldn't use that stuff. That's why it locks up "maybe even a little too well" as you say. You should use silicone oil, like what was in it in the first place. I forget the weight because it's been a while since I did one and I'd have to find my notes. It's available through Toyota but you can also buy silicone oil at places that sell RC car supplies for a little less money. Link to comment https://www.classiczcars.com/topic/28205-engine-cooling-questions/?page=2#findComment-251457 Share on other sites More sharing options...
Patcon
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now