Hello Mark, The heat shield I put on was the standard type one that is used on flat tops. It is just thin crappy tin, nothing fancy about it. I think it is mostly about having something there to reflect the radiated heat, and guide away the heated air. On the SU manfold there are bolt holes specifically to mount up heat shield. I think weak ignition coils can cause troubles starting when hot as well.
Sunday, October 27, 2002, 7:51:25 PM, you wrote: MF> Thanks guys, heat off the extractors sounds like it could be it, but the other day my car sat in the sun for 4 hours while i was at work, and then it wouldn't start even after all that time! MF> Could the heat from the car being in the sun evaporate the petrol too?? MF> If so then a heat shield sounds like a good idea. MF> What should i make it out of? thickness? MF> where should i mount it to? MF> How big does it need to be? MF> Any help appreciated! MF> Thanks, MF> Mark. MF> --- Robert Charles Scealy <[EMAIL PROTECTED]> wrote: >>I had a similar problem with my twin SUs a few weeks ago, and it was the >>heat of the extractors boiling the fuel out of the carbies. Then when >>they are empty, it heats them up enough that any new fuel pumped into >>the carbies boils immediately, until enough enough fuel pumps in and >>cools them down. A heat shield fixed it. >> >>On Fri, 25 Oct 2002, Mark Firman wrote: >> >>> Hi all, >>> >>> Lately when i have been driving for a while and then go to start the car up again >when it's warm it doesn't want to kick (say 50% of the time). It will fire once or >twice and then just die! It >>> will just keep doing this until i floor it for about 5 non starts, or sometimes it >just decides to start after the second or third. >>> I suspect it might be the fuel in the carby evaporating due to the heat in the >engine bay or something (happens on hot days)??? Could this be the cause?? >>> My car really seems to lack quite a lot of power since when i had it tuned about 2 >months ago (and it hasn't even seen a lot of driving since) - It revs fine, but just >doesn't make the power it >>> used to :( any suggestions as to why? Could this be related to my starting problem? >>> >>> Thanks and sorry for rambling on but any ideas would be great! >>> Mark >>> p.s. its a L20B with a single 45mm weber and a mild cam. >>> >>> _____________________________________________________________ >>> Get Your free Ozdat Email Account >>> ---> http://www.ozdat.com >>> >>> _____________________________________________________________ >>> Select your own custom email address for FREE! Get [EMAIL PROTECTED] w/No Ads, >6MB, POP & more! http://www.everyone.net/selectmail?campaign=tag >>> >>> >> >> MF> _____________________________________________________________ MF> Get Your free Ozdat Email Account --->> http://www.ozdat.com MF> _____________________________________________________________ MF> Select your own custom email address for FREE! Get [EMAIL PROTECTED] w/No Ads, 6MB, POP & more! http://www.everyone.net/selectmail?campaign=tag -- Best regards, Bob mailto:rcs07@;uow.edu.au --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@;datascribe.com.au/ ---------------------------------------------------------------------
