Date: Wed, 25 Jul 2001 05:19:13 GMT From: life_speednopsamo.com Subject: Re: Does anyone use synthetic oils?
Interesting story. Were the roller cam problems from one particular brand of oil? I know Redline synthetic is commonly used in race applications including roller cams, but I've not heard of problems. - Lifespeed In alt.autos.turbocharged Turbodave <yeahnopsamt.com> wrote: : Well while we are on the subject I learned the hard way that = : synthetic oil is actually to slippery in some cases as in on roller = : camshafts, I was having trouble with wiping out the lobes in a short = : period of time, finally got the answer from the guy who machines my race = : motors/ and then backed up by one of the tech people at Crower.. , it is = : so slippery that the roller on the lifter will not turn as it is going = : up the ramp for a short duration, the reason is the inside pin on the = : roller has a higher friction no. than the outer part of the pin that = : touches the cam lobe creating this skid area eventually wearing out the = : lobe. : Just something I have come across, I also feel that a turbo with = : anything less than perfect seals is more likely to leak with synthetic. : Just my opinion on the latter part though. : Dave . : ------=_NextPart_000_078B_01C1149C.22B49C00 : Content-Type: text/html; : charset="iso-8859-1" : Content-Transfer-Encoding: quoted-printable : <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"> : <HTML> : <HEAD> : <META content=3Dtext/html;charset=3Diso-8859-1 = : http-equiv=3DContent-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 = : Transitional//EN"> : <META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR> : <STYLE></STYLE> : </HEAD> : <BODY bgColor=3D#ffffff> : <DIV> </DIV> : <BLOCKQUOTE=20 : style=3D"BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: = : 5px"> : <DIV><FONT color=3D#000000 size=3D2>Well while we are on the subject = : I learned=20 : the hard way that synthetic oil is actually to slippery in some = : cases as in=20 : on roller camshafts, I was having trouble with wiping out the lobes = : in a=20 : short period of time, finally got the answer from the guy who = : machines my=20 : race motors/ and then backed up by one of the tech people at = : Crower.. , it=20 : is so slippery that the roller on the lifter will not turn as it is = : going up=20 : the ramp for a short duration, the reason is the inside pin on the = : roller=20 : has a higher friction no. than the outer part of the pin that = : touches the=20 : cam lobe creating this skid area eventually wearing out the=20 : lobe.</FONT></DIV> : <DIV><FONT size=3D2>Just something I have come across, I also feel = : that a=20 : turbo with anything less than perfect seals is more likely to leak = : with=20 : synthetic.</FONT></DIV> : <DIV><FONT size=3D2>Just my opinion on the latter part = : though.</FONT></DIV> : <DIV><FONT size=3D2>Dave .</FONT></DIV> : <DIV><FONT size=3D2></FONT> </DIV></BLOCKQUOTE></BODY></HTML> : ------=_NextPart_000_078B_01C1149C.22B49C00-- -- Lifespeed
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