hello list. if any of you are going to be a it import carlisle this weekend,
please stop by. our spaces are d49 -51. will be ther through late saturday
afternoon. ted
jaboruch wrote:
> Bob,
> I will bring my leak down tester with me tomorrow. We can do a quick test
> if you want. Did you have the crankcase problems before the other problems?
> If not, you may have some worn rings now, causing all the blow-by. Rings
> don't like to get hot, and can quickly wear. With my TR3 I have a 1inch
> pipe into the crankcase, and a half inch pipe from the valve cover. I keep
> the dipstick held in place with a spring to keep it sealed. Joe
> ----- Original Message -----
> From: Bob Lang <LANG@isis.mit.edu>
> To: <fot@autox.team.net>
> Sent: Monday, May 15, 2000 6:42 AM
> Subject: Crankcase Venting
>
> > Hi,
> >
> > Well, the beast lives again... post operative notes: failure mode -
> > initially the pressure relief valve was stuck almost closed causing
> > astronomically high oil pressure, then the valve stuck open causing very
> > low oil pressure - this latter event occurring while under load - # 5 con
> > rod bearing taking the worst part of the load.
> >
> > Anyway, all the "swarf" has been cleared out and bearings replaced "in
> > situ", I'm 95% confident the thing will run for a while. Oil pressure is
> > now 65 PSI warm, 80 cold with the Moss "heavy duty" oil pressure relief
> > spring.
> >
> > Now, I'm getting a bit of blowby on the rings, I think... I don't have a
> > leak-down tester to confirm, but this is a new motor with less than one
> > hour. Anyway, I seem to be getting excessive crankcase pressure, and this
> > is causing weepage around the valve cover, where the dipstick enters the
> > block and a bit from the oil filler itself.
> >
> > I have only one 1/2 inch line venting to a catch tank from the
> > valve cover. My plan is to drill the "blanking plate" where the mechanical
> > fuel pump used to go... but to drill it out for a 1/2NPT pipe to AN8
> > adapter and then run another 1/2 inch hose to the catch tank.
> >
> > My question is: is a single 1/2 inch hose from the top of the engine and
> > then another 1/2 hose from the bottom of the engine adequate ventilation
> > for a relatively mild TR6 engine??
> >
> > regards,
> > rml
> > --------------------------------------------------------------------------
> -----
> > Bob Lang Room N42-140Q | This space for rent.
> > Consultant MIT Computer Services |
> > Voice: (617)253-7438 FAX: (617)258-9535 |
> > --------------------------------------------------------------------------
> -----
> >
> >
>
> _____________________________________________
> Click here for FREE Internet Access and Email
--
Ted Schumacher
tedtsimx@q1.net
http://www.tsimportedautomotive.com
Fax: 419/ 384-3272 (24 hrs.)
Phone: 800/ 543-6648 (US & Canada)
Tech/Gen Info/Worldwide: 419/ 384-3022
******************************************************
New - used - rebuilt - performance British car parts.
200-300 cars in our British salvage yard.
|