Engine Teardown of Razzyh 2056 Type 4 engine

What’s the condition of the heads & B&P?

 

i think its time to split it......
put us out of our misery.

 

This is better than any soap or "who done it?" on the telly

 

Yeah but we know who done it

 

Who done what I BLAME JR

 

Colonel mustard with the candlestick in the library?

 

Let's concentrate on the engine rather than anything else.

And what we can learn from it

 

Thats cam follower ,cam goes to cast iron dust,thats steel flakes not swarf.

 

Google Peter Baldwin rolling road he is/was a legend (now retired)
He raced minis very successfully and when there you’d often see ridiculously expensive exotic motors in his care.
However he treated everyone the same.
He didn’t touch chavs not really the type and he had a waiting list months long!






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I’m sure that’s the one that me and Razzy went to, he certainly seemed to know what he was doing.

 

Panic over.... had to go through my rebuild thread to check (so at least it came in useful for something ) couldn't remember shims at base of barrels for the life of me but put 1mm ones to get CR right... as you were

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Shims at base of barrels adjust deck height,shims in head enlarge combustion chamber ,change compression.

 

Same overall effect though?

 

Yup I went there twice.

 

Thats got me thinking.

 

A shim, barrel and head will give the same distance from piston crown to top of combustion chamber wherever you put the shim

 

Same effect - a two stroke would be a different kettle-o-fish but on a 4 stroke it`s the chamber volume that you`re altering wherever the packer / shim is placed .

 

A shim on the barrel,will still draw in the same amount of air fuel mix pushing into the same space,a shim at the head will give it more space to compress?

 

You`re over thinking it , the shim will raise the head volume by the same amount whether on top of the barrel or on the base - as @Flakey rightly points out ...

The head volume being the important bit