Radiator is probably 3-4 years old - If I do replace the radiator, I'll probably go with a custom 3-row unit.
----- Original Message ---- > From: "[email protected]" <[email protected]> > To: Volkswagen a2 16v discussion list <[email protected]> > Sent: Wed, August 11, 2010 1:03:45 PM > Subject: Re: [a2-16v-list] Overheating > > I am using a u/r under drive pulley has been on the car for 11 years never > had >overheating issue with it how old is the radiator ? > > Sent by BlackBerry, available from NTELOS Wireless > > -----Original Message----- > From: Matthew Yip <[email protected]> > Sender: [email protected] > Date: Wed, 11 Aug 2010 09:46:15 > To: Volkswagen a2 16v discussion list<[email protected]> > Reply-To: Volkswagen a2 16v discussion list <[email protected]> > Subject: Re: [a2-16v-list] Overheating > > I'm still running the stock pulleys - spoke with Paul @ Gruvenparts (Thx to >Josh > > for the lead). Their findings are that an underdrive pulley set causes > over-heating which makes sense. I've heard about water pump impellers >slipping > > - usually it's the plastic ones but this car has been doing that on this car >for > > a long time. I think it was the same before I changed the pump BUT I have a > spare at home and may just do that. > > I don't have the OE shields - I built some ducting late last year and am > prepared to build more as this is driving me absolutely insane (as if I > wasn't > > beforehand for racing a VW). > > > > > ----- Original Message ---- > > From: darner <[email protected]> > > To: Volkswagen a2 16v discussion list <[email protected]> > > Sent: Wed, August 11, 2010 12:59:57 AM > > Subject: Re: [a2-16v-list] Overheating > > > > Do you have an underdrive pulley set? It might be worth trying to > > "push" the coolant pump a bit more. If the crank pulley is smaller than > > stock, try a return to full size (opposite at pump: if it's oversized, > > go down a size or two so that it has to go around more times for a given > > belt length passing by). I've seen a water pump that had a shrink-fit > > aluminum impeller on a steel shaft; when hot, it slipped. No idea > > whether it did it from new, though, and that was an older car. Another > > thought: try running a fully normal thermostat once, letting it act as a > > constriction that slows flow, giving more dwell time in the radiator. > > Are all of your shields and airflow control pieces in place around the > > radiator? Air that bypasses doesn't cool. > > > > Matthew Yip wrote: > > > I've been fighting this issue for an eternity - with all new hardware > > > and >a > > > > > gutted thermostat, my car runs HOT during a race - right at the > > > hot-line >on > > >the > > > > > OE gauge with oil temps around 250-260. My former crew and now fellow > > > competitor doesn't have this problem and most everyone else with a VW > >(albeit 8v > > > > > cars) doesn't have any issue. > > > > > > As noted, all the components are new and the t-stat is gutted so, in >theory, > > >I'm > > > > > absolutely befuddled. The radiator is a 16v rad for an a/c car so, > > > theoretically, it's the largest 16v radiator available. > > > > > > > > > One comment from a buddy who races and tunes Hondas is that the timing > > > is > > >too > > > > > aggressive and it's building too much heat. I wonder if it could be > > > that > > >the > > > > > car is running too lean, creating too much heat. > > > > > > > > > Any suggestions on a more efficient radiator? > > > > > > Ugh...Matthew > > > > > > > > > > > > > > > _______________________________________________ > > > a2-16v-list mailing list > > > [email protected] > > > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > > > For list archives, see listinfo link above. > > > > > > > > _______________________________________________ > > a2-16v-list mailing list > > [email protected] > > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > > For list archives, see listinfo link above. > > > > > > _______________________________________________ > a2-16v-list mailing list > [email protected] > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > For list archives, see listinfo link above. > > _______________________________________________ > a2-16v-list mailing list > [email protected] > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > For list archives, see listinfo link above. >
