Hi Jeff
If you foresee an engine rebuild in the future I would avoid drilling the
hole in the sump any bigger as it is relatively easy to get the oil seal
housing and put it all back to standard. In my opinion the bolt on either
side will take the strain, though if you have tap and drill go for it, don't
drill it any deeper and I would advise only going up one size. If my memory
serves me the current size is 5/16" UNF so go to 3/8"UNF, the only thing to
remember is to keep the tap perpendicular to the surface of the oil seal
housing (the bit you will be tapping), also it is ally so be careful or you
may strip the new thread with the tap!
I would sugest a helicoil, these are brilliant but I know people with these,
they will not lend the kit out, it is very expensive gear and they usually
charge an arm and leg to do it for you! £10 per hole helicoiled is the
retail rate in my area!
Filters sound like Crossland.
Graham.
----- Original Message -----
From: Jeff McNeal <jmcneal@ohms.com>
To: Spitfire List <spitfires@autox.team.net>
Sent: Wednesday, February 09, 2000 2:14 AM
Subject: Oil Filter Defeated: New Problem
>
> Hi everyone. My local Brit garage/parts depot had the 5/8" to 3/4"
> adapter -- AND a couple of oil filters which brand name I can't recall,
but
> they're dark blue and made in the U.K. Terrific.
>
> The engine oil is still drained however, as I seek to slow down a fairly
> nasty oil leak by replacing the gasket on the oil pan. I noticed that one
> of the bolts is missing (one of the two center bolts in the rear of the
pan)
> and the threads in the block are stripped.
>
> I decided that yes, I must be anal-retentive as I wiped the remaining
sludge
> out of the bottom of the oil sump and made sure that all old gasket
material
> was completely removed.
>
> I'm trying to figure out what to do about that stripped out thread in the
> block. IS there anything I can do? Or are the other surrounding bolts
> enough to get the job done. I've never used a tap and die set in my life
if
> that's one of my options, but I suppose I'd be willing to learn how if
> that's the only solution to my problem.
>
> Thanks in advance.
>
> Jeff in San Diego
> '67 RHD Spitfire Mk3 aka "Mrs. Jones"
> http://www.ohms.com/spitfire/projects.shtml
>
>
>
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