[Healeys] oil pressure problem

richard mayor mayorrichard at hotmail.com
Sat Sep 20 18:53:35 MDT 2014


That's why I have ACL engine bearings for sale for 6 cylinder Healeys.  My
supply is declining so those who want top quality engine bearings should
contact me.  When they're gone, they're gone.

Richard

> From: austin.healey at gmail.com
> Date: Fri, 12 Sep 2014 23:04:29 +1000
> To: healeymanjim at hansencc.net
> CC: healeys at autox.team.net
> Subject: Re: [Healeys] oil pressure problem
>
> Hi, just home from my honey moon Healey road trip.
> That's another story. A great story, and all happy!!
> So Jim, I'll ask you one question...
> County??
> Ok. Bonus Question 2.
> You know they are County, but they have another Indian brand name??
> If yes, to either, you have your answer.
> They aren't bearings.
> They are strips of curved metal.
> Just like the last peaches tin you chucked in the bin. If you cut it into
> curved strips? Did that make it into a precision bearing?
> If it isn't a county bearing (10 thou out is a clue, not actually round is
> another...) then I'd be speaking to your crank grinder....
> Bearings are a precision fit.
> Best
> Chris
>
> Sent from my iPhone
>
> > On 12 Sep 2014, at 12:18 pm, <healeymanjim at hansencc.net> wrote:
> >
> > a while back i had mentioned a newly rebuilt bt7 engine that had very low
> oil pressure.  after doing all the obvious external investigations to no
> avail, we dropped the pan and tried to plastigage the rods.  here is where
we
> discovered the problem.  the plastigage would not even flatten out.  i
checked
> all big ends and they were all loose as a goose.  pulled all rod caps and
> discovered that even though crank stated it was .020 reground and mains
were
> .020 undersize, all six rods had .010 bearings.  new bearings were
installed
> and now  at operating temp the oil pressure is over 30 psi at about 1000
rpm.
> all is well, right?  wrong.  we cannot figure out why even at high rpm we
> cannot get over 50psi pressure on a cold engine using two different guages.
> we even put some washers behind a brand new relief valve and spring with no
> success.  the owner is going to live with it, but sure would be nice to
know
> what is happening.  could it be a gallery leak we could not find or
something
> i hav
> > e never heard of.  would really like
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