Take the reciprocating and rotating internals to a machine shop (preferably
one that does racing work) and have them balanced. (Yes, even the brand-new
pistons.) You'll be amazed at the difference in smoothness and rev-ability.
Chris K.
On Sun, 25 Apr 2004 19:06:24 -0400, William M. Gilroy wrote
> Hi,
>
> I am about to rebuild the engine in my 77 MG Midget with a Triumph
> 1500cc engine. That is the reason for posting to both lists.
>
> The engine in question was a low compression smogged engine. It
> will have twin 1.5 SUs and headers. This car is used for driving in
> NJ, 0 to seventy back to 0 between traffic lights :-) I would like
> to make it a bit higher compression and change the cam, but I don't
> want a really lumpy idle and a power band that starts high up. This
> is what I plan to do:
>
> 1) Send to machine shop and have the head done if required
> 2) Have the block hot tanked.
> 3) Cylinders checked for roundness and size. How far can you bore
> one of these engines out or do they need to be lined then bored. 4)
> Should I have the block line bored? 5) Thrust washers pinned in
> place. Any pointers on what the looks like? 6) Higher compression
> UK spec pistons. What is a a reasonable compression ratio, and I am
> not worried about using premium gas. 7) I am thinking of a Ted
> Shumacher has a TS1275 cam. 8) Replace the valve springs 9) Do I
> need umbrella seals on the intakes valves? 10) New pistons and
> rings. 11) New oil pump 12) I have heard of having the oil passages
> bored out. Any thoughts?
>
> Anything that I have missed? Any thoughts? What would you do, or
> what would you do differently?
>
> This is my first time doing this so I have a few questions. Thanks
> for any help or input.
>
> --
> William M. Gilroy
> wm.gilroy@verizon.net
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