[Fot] Doug Still Guides Me...

[Brad Eells]

Interesting...I thought that would be a standard machine shop operation,
like resizing rods.

Apparently not...


*Brad Eells*
*Chino CA*
*#72 FP 1969 Triumph Spitfire Mk3*
*#35 DP 1962 Triumph TR4*
*1965 Triumph TR4A IRS...for the road!*




On Mon, Mar 23, 2020 at 8:30 AM Bud Rolofson <levilevi at comcast.net> wrote:

> Speaking of main caps I bought a block that turned out to not have the
> original main caps. The caps on there did not match up with the block but
> I’ve been unable to find a machine shop that can machine them so there’s a
> round hole for the crank. The shop I had do my last block (and they do 427
> race engines among others and are well respected) told me that the result
> would be ovaled out holes (not round) which obviously is not good.
> Certainly there’s a way to make this work but I haven’t found it. I
> checked out another block shop but said they subcontract line-boring to the
> the shop that said they couldn’t do it.
>
> Has anyone else encountered this problem? I’ve heard that steel mains
> might be an answer but they’d still have to be line-bored to make them
> match. I hate to ship a block to get this done before I have reassurances
> that they can make it work but does anyone know of that has successfully
> made main caps match the block? Given I’m spending a lot of time these days
> staying home and catching up on car projects in the shop I figured it would
> be a good time to start building the next engine.
>
> Solutions or recommendations?
>
> Thanks
> Bud
>
>
>
> On Mar 22, 2020, at 9:33 PM, Brad Eells via Fot <fot at autox.team.net>
> wrote:
>
> Amici,
>
> In typically rookie race engine builder mode with the block I selected for
> rebuild, I pulled the main bearing caps (with my new fancy DeWalt 20V
> Impact Wrench) and then couldn't remember which way around they went.
>
> This led to visions of catastrophic failure somewhere down the road. Yet,
> I had several other blocks I could flip over and make a determination if
> need be.
>
> I was examining one of the caps when I discovered the faintest engraving
> on the surface of each cap:
>
> Eng #2 Front Fwd
> Eng #2 Mid Fwd
> Eng #2 Rr Fwd
>
> Doug Brown, my original owner/builder/driver extraordinaire had engraved
> each cap for me to make sure a mistake didn't occur. He rotated 3 engines
> during each season in a quest for Divisional and National Championships.
>
> I guess that is the way a aeronautical/mechanical engineer and very
> successful racer thinks.
>
> Thanks again Doug!
>
> <IMG_8745.jpg>
>
> Cheers,
>
>
> *Brad Eells*
> *Chino CA*
> *#72 FP 1969 Triumph Spitfire Mk3*
> *#35 DP 1962 Triumph TR4*
> *1965 Triumph TR4A IRS...for the road!*
>
>
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>
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>
> Bud Rolofson
>
> Extreme Parts Racing (more than just a haircut)
>
> 71TR6 CC57365 (Good 6)
> 71 Spitfire MK IV Race Car #3
> 69 Spitfire MK III (back up FE engine/dinghy car)
> 93 Minnie Winnie Race Support Vehicle
> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
>
>
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