Thank you for showing us this procedure in detail. Very intresting and it also gives you an understanding for what the expense of boring a block is based on.

@ACDodd

Жыл бұрын

That’s the idea, these procedures take time and hence adds to the cost.

Nice to see how you do it. I worked as motor mechanic for Royal mail, we reconditioned our engines mainly in house. My friend used to do the engine rebores, we both had mini's . He rebored his block to 1430, I think, using herald pistons, following Vizards book.

@ACDodd

Жыл бұрын

Nice!

Terrific video, really looking forward to the boring. How do you decide whether to line bore?

@ACDodd

Жыл бұрын

If the bearing crush is too loose it will need line boring. Fit the crank in the block with fresh bearings and lube and rotate. If you have contact marks on different sides of the 3 bearings it needs a line hone. In reality, if you are building a high performance engine, do it as part of your prep anyway.

Does the crank need modifying if the bores are offset ?

@ACDodd

Жыл бұрын

Not in the slightest

Fully skirted pistons? Look like they're for a tractor...

@ACDodd

Жыл бұрын

That’s because these engines are long stroke small bore units.

@sdmoparmaninsd6713

Жыл бұрын

@@ACDodd Doesn't make it any less tractory :D

@alro2434

Жыл бұрын

Thank You. Looks like a pretty thick head on them even with the dish! I liked flat tops for the CR, but now I see that currently the dish has proven to get better combustion & power, gee, the flat tops seemed so obvious in the early 70's.

@ACDodd

Жыл бұрын

@@alro2434 yes the dish on this engine design at least has proven to be the optimal.