[Healeys] Oil pressure relief valve, moving along.

[Robert Blair]

Simon - anxious to hear the result.

Robert N. Blair  Yellow 65BJ8  RNBmail at yahoo.com
 



--- On Tue, 10/5/10, Simon Lachlan <simon.lachlan at homecall.co.uk> wrote:

> From: Simon Lachlan <simon.lachlan at homecall.co.uk>
> Subject: [Healeys] Oil pressure relief valve, moving along.
> To: "'Healey forum'" <healeys at autox.team.net>
> Date: Tuesday, October 5, 2010, 9:58 AM
> I'd noticed that my oil pressure was
> not too good, so I read the string (and
> strings and strings) with considerable interest. Someone
> pointed the way to
> an excellent article by Roger Moment, one of our Gurus who
> has reached the
> Very Highest Levels. This article persuaded me that I would
> benefit from a
> new oil pressure relief valve spring as my car's symptoms
> matched up with
> some in the article and if Roger says "do it", I do it.
> (Spring costs
> pennies and engine work/parts cost serious money, so all
> indications were
> good).
>
>
>
> My car is right hand drive and it has a servo, so access
> wasn't easy. The
> nut is 1 and one eighth inch and came off easily enough
> with a ring spanner,
> coming at it from below.
>
>
>
> The new spring was longer, stiffer and fractionally heavier
> than the old
> one. By "heavier" I mean it looked heavier and it weighed
> more. (Same width
> and same number of spirals). I got the impression that the
> new spring was
> identical to the old one, but with 50 or so years' less
> wear in it. Hope you
> see what I mean.
>
>
>
> The nut with new spring was a pig to get in the first half
> turn. No space
> for tools (without removing servo and maybe oil filter
> etcetc) and my hands
> are not what they were forty years ago. Age and arthritis.
> However, I'd
> taken it to local garage to attempt it on a ramp. Garage
> had a Big Strong
> Boy, very useful tool, who got it in for me. (Smaller
> hands, but younger and
> stronger).
>
>
>
> Result......well, I've got the figures on the old spring
> (pressure at which
> temp and how many revs after 2, 5, 10 & 20 minutes) but
> I've not been able
> to do it with the new spring yet.
>
> BUT, I am 99% sure that I've gained about 10+psi all round.
> Maybe more. Fast
> idle, warm engine, was around 60. So, it's all to the
> good.
>
>
>
> Just thought I'd let you know how I benefitted from the
> accumulated wisdom.
>
>
>
> Am going away until after the weekend and will tabulate the
> new figures when
> I get back. If anyone wants them...
>
> Simon
> _______________________________________________
> Healeys at autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:
http://autox.team.net/mailman/options/healeys/rnbmail@yahoo.com