[Healeys] oil pressure problem

[Patrick & Caroline Quinn]

G'day Chris

Congratulations to you and Dina from us both. We knew it was coming, but
didn't know when. That's wonderful news.

Best wishes

Patrick & Caroline Quinn
ps Also did an AH honeymoon trip 39 years ago in a superior four-cylinder
car.

-----Original Message-----
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Chris
Dimmock
Sent: Friday, 12 September 2014 11:04 PM
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
$12.75
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