The metalurgy aspect is something he should realize if he is a mechanical
engineer. Also, these threads are typically stripped when the wrong bolts are
used, not necesarily from over torquing. The torque levels are not that high
and over torquing will only make the leak worse as it distorts the surface.
There are long and short bolts for both the oil pan and timing cover, short
bolts go into the aluminum block. Same for the rear seal piece. When the wrong
bolts are used in the wrong place on the timing cover it can also warp the
front plate which will also result in a difficult to fix, and sometimes
diagnose, leak.
Attention to detail in disassembly and reassembly can go along way here.
Shawn J. Loseke
1972 TR6
Fort Collins, CO
>===== Original Message From "Greg Dito" <dito9561@bellsouth.net> =====
>WARNING! CODE RED! Anytime someone tries to 'improve' on a design be very
>careful. The original part is aluminum, not steel. If memory serves me
>correctly that was to allow the aluminum to expand from the heat to give a
>better seal against oil seepage, including around the side wood wedges and
>the threaded screw holes. This will not happen with a steel part as its
>coefficient of expansion will be very close to the cast engine block.
>
>There are plenty of decent used parts around that you should be able to find
>without stripped threads. Stripped threads are very common for this part
>but you could helicoil these if need be. This eBay item is one
>'improvement' that I would be very leery of using on my TR.
>
>Greg Dito
>CD6250L
>
>----- Original Message -----
>From: "Todd Bermudez" <red_tr250@yahoo.com>
>To: "Shannon Muncy" <shannm2@triad.rr.com>; <6pack@autox.team.net>
>Sent: Monday, January 31, 2005 8:55 PM
>Subject: Re: Something found on Ebay..Opinions
>
>
>> Shannon,
>>
>> It does look nice. Be careful though. There have
>> been some other nice goodies on e-bay AND OFF e-bay
>> that have been brought to this list. Some have paid
>> dearly.
>>
>> Who's the seller? Have a name?
>>
>> Todd Bermudez
>> CD198L
>> CF25768UO
>>
>> --- Shannon Muncy <shannm2@triad.rr.com> wrote:
>>
>>> It looks nice... I changed the gasket on my TR a few
>>> weeks ago and noticed
>>> mine was stripped. This would be nice if it worked.
>>>
>>>
>>
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=34202&item=4524083621&rd=1
>>>
>>> If for some reason the link is blocked the ebay item
>>> number is: 4524083621
>>>
>>> -Shannon
>>> 72 TR6
|