Errol just on heat, any idea what an acceptable 'race' temp would be for the SR ?
I've found that mine is running up at around 200-205 (F) ish , time for a bigger radiator?? Cheers, Cam CM510 www.cm510.com ----- Original Message ----- From: "E Smith" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, January 27, 2003 10:28 PM Subject: RE: engine confusion... > This is indicating that your oil is getting close to its designed working > limits. When the oil gets over temp, it becomes susceptible to molecular > shear. In molecular shear the molecular layers are physically torn apart as > the layer bond strengths are reduced with the heat. This causes the oil to > lose its ability to keep load bearing components seperate. > esult high wear and potential siezure and $$$$$$$$$$$$$$$$$$$$$$ > Oil coolers are worth their weight in gold, if used with an oil stat for > temp control. > Cheers, > Feral Errol > <http://www.datrats.com.au/> > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Paul Stanley > Sent: Monday, January 27, 2003 8:52 PM > To: [EMAIL PROTECTED] > Subject: Re: engine confusion... > > > Sorry I dont know anything much about engines, but on slightly the same > subject, I noticed on a hot day with the AC on I can get my L20B to nearly > 200 deg F and the oil pressure drops down at least a 3rd of what it would > run on an average 22 degree day. Is that a sign of a worn oil pump or just > the oil losing viscosity? Is oil too thin a bad thing? > > From: Paul Stanley > > > > > ----- Original Message ----- > From: David Andrews <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, January 27, 2003 11:54 AM > Subject: Re: engine confusion... > > > > Well first thing to do is to run it richer on a cold day and see if that > > helps. That'll tell you if the mixture has anything to do with the oil > > consumption. > > > > Second thing is to perhaps try a different weight oil as the heat will be > > lowering the oil viscosity. Try both heavier and lighter and see how that > > affects it. > > > > Regards, > > > > Dave > > > > >>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<< > > > > On 1/27/03, 12:20:26 PM, "mark krawczuk" <[EMAIL PROTECTED]> wrote > > regarding Re: engine confusion...: > > > > > > > thats true, the compression rings seal the chamber, and the oil rings > > just > > > scrape away the excess oil from the bores, and if these are worn will > > allow > > > to much oil on the bores and get into the chamber. > > > > > mark k > > > ----- Original Message ----- > > > From: "andrew smith" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Monday, January 27, 2003 11:25 AM > > > Subject: Re: engine confusion... > > > > > > > > Unfortunatly compression testing doesnt allways give a true indication > of > > > oil > > > > consumption.Valve guides will just about allways give a puff of smoke > on > > > start > > > > up if they are worn.Sounds like it might have weak oil control > > rings.(just > > > a > > > > guess).Runing better in hot wheather sounds like it is lean on cold > > > days.It > > > > must be nearly at the surge stage on cold days for you to notice the > > > > difference.Not blowing smoke on hot days has me stumped. > > > > On my mates drag car we would get it setup right during qualafying(hot > > > > daytime) and then during eliminations(cold nights) it would run slower > > and > > > > would be knocked out in the first round.If you cant run within a > couple > > of > > > > hundreths of your dial in then you get knocked out.We are now getting > a > > > much > > > > better handle on the night time tune and let it run slower during > > > qualifying. > > > > > > > > "GREENBURY, Andrew Robert" wrote: > > > > > > > > > Hi everyone, > > > > > > > > > > The condition of my L18 has seemed to be getting worse and worse - > > > blowing > > > > > more and more clouds of smoke predominantly after a closed throttle > > > > > (taking off, after coasting down a hill etc). Its now doing it > > > > > consistently after every coastdown. > > > > > > > > > > However a compression test revealed a consistent 176 psi (at WOT > cold) > > > in > > > > > all cylinders, so I thought it might be the valve seals. > > > > > > > > > > Now the weird thing is in our hot Melbourne weather the car runs > much > > > much > > > > > better (runs smoother, more responsive, less harsh). And the really > > > weird > > > > > thing is in 40+deg weather Saturday, the engine didnt blow any smoke > at > > > > > all, even after coasting down big hills that usually have bellowing > > > clouds > > > > > pumping out. > > > > > > > > > > So the reasons for all this have got me stumped. Something I thought > may > > > > > be a factor was that the atmospheric changes (temp, pressure) has > the > > > > > engine sucking less air for the same amount of fuel ie running > richer in > > > > > the hot weather, therefore the engine was running lean before. > > > > > > > > > > I also thought maybe for some reason the engine is sucking blowby in > > > > > excessively, adversely affecting combustion performance, but how all > > > this > > > > > relates to better performance and very little smoke in hot weather > > > > > compared to normal has got me stumped... > > > > > > > > > > Any thoughts on this would be greatly appreciated, > > > > > Andrew > > > > > > > > > > > > > > > > > > > > > > --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/[email protected]/ ---------------------------------------------------------------------
