[Fot] Rear Main Cap

[Bob Kramer Gmail]

I was successful in finding a closely matched set for a TR4 block and was able to get it align bored. We learned the the plane the crankshaft was on was off a bit from the plane that the deck and figure 8’s had, and different from the oil pan surface as well. 

Sent from my iPhone

> On Mar 18, 2023, at 5:15 PM, Rod Pierce via Fot <fot at autox.team.net> wrote:
> 
> 
> Based on how far off the bearing is offset, I wanted to rule out differences in model years for the 1300.
> 
> It seems the answer to my original question is that there was considerable variation in engines that came off the assembly line when these cars were made.
> 
> Solid evidence of why you don't mismatch bearing caps!
> 
> Thanks for the input.
> 
>> On Sat, Mar 18, 2023, 4:44 PM Rick Parent <rick.parent at att.net> wrote:
>> No, you can't fix that without finding a better cap that matches the groove in the block. I just mentioned the align hone because of the weird looking bearing wipe on the left side of the cap.
>> 
>> Rick Parent
>> 
>> "Doing the right thing is always the right thing, regardless of consequences"
>> 
>> 
>> 
>> On Saturday, March 18, 2023 at 12:38:52 PM MST, Rod Pierce via Fot <fot at autox.team.net> wrote:
>> 
>> 
>> So are you saying the lack of line honing would cause the bearing offset? 
>> 
>>  Supposedly this block was line honed.
>> 
>> On Sat, Mar 18, 2023, 2:10 PM Scott Janzen via Fot <fot at autox.team.net> wrote:
>> One of the mysteries of a big batch of GT6 parts and cars i picked up some years ago was a box of 50+(!) main caps, which i still have.
>> Also got two blocks (with no caps), but why would anyone separate all these?  Nothing to do but laugh when i discovered them.
>> Box makes a nice heavy doorstop.
>> 
>> Sent from my iPhone
>> 
>>>> On Mar 18, 2023, at 6:27 PM, ralph hansen via Fot <fot at autox.team.net> wrote:
>>>> 
>>> 
>>> main caps are machined as a set to the block itself - if you need to replace a cap, good luck finding a cap with the grooves lining up / if you do get lucky you'll need to get the block and caps line bored to make it all work properly
>>> 
>>> 
>>> On Saturday, March 18, 2023 at 08:26:23 AM CDT, Rod Pierce via Fot <fot at autox.team.net> wrote:
>>> 
>>> 
>>> The image shows the rear main cap and bearing on a small journal 1300.
>>> 
>>> As you can see, there is an offset between the two bearing halves. 
>>> 
>>> I was attempting to mix and match parts from my parts bin.
>>> 
>>> I'm curious about the source of the offset.  Is there a difference in end caps from year to year on the 1300 or is there a difference from engine to engine when they were manufactured?
>>> _______________________________________________
>>> fot at autox.team.net
>>> 
>>> http://www.fot-racing.com
>>> 
>>> Donate: http://www.team.net/donate.html
>>> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/quikrx@yahoo.com
>>> 
>>> 
>>> _______________________________________________
>>> fot at autox.team.net
>>> 
>>> http://www.fot-racing.com
>>> 
>>> Donate: http://www.team.net/donate.html
>>> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/sjanzen@me.com
>>> 
>>> 
>> _______________________________________________
>> fot at autox.team.net
>> 
>> http://www.fot-racing.com
>> 
>> Donate: http://www.team.net/donate.html
>> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/rpierce141@gmail.com
>> 
>> 
>> _______________________________________________
>> fot at autox.team.net
>> 
>> http://www.fot-racing.com
>> 
>> Donate: http://www.team.net/donate.html
>> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/rick.parent@att.net
>> 
>> 
> _______________________________________________
> fot at autox.team.net
> 
> http://www.fot-racing.com
> 
> Donate: http://www.team.net/donate.html
> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/rkramer56@gmail.com
> 
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20230319/24619b44/attachment.htm>