as above.......

 

No

 

no

 

 

Would the next best way not be to use a burette with or something with an SG as close to water as possible ? I don't know and i'm enquiring as well

 

Yeah but head needs to come off really, otherwise you will loose the liquid down the side of the rims into the sump!!!, with the head off you can seal them with grease

 

of course

and if the head was off ideally use a piece of perspex / glass to cover the bore and then gradually add said liquid via a small hole ?

 

You have done your research

 

https://passionford.com/forum/viewtopic.php?t=119441

HTH

Bill

 

mmmmmmmm think ill just have to take his word for it

 

won't let me read the link

 

http://mywebpages.comcast.net/mopauly/compression.htm

 

Have to be a gold member

 

Have to be a gold member

 

CHEERS EIL132 don't think ill be doing it though a bit to much mess on i going to try and catch the old man who built the engine and question him ........see what he says

 

Sorry, didn't realise you weren't a gold member, but Eil has posted the relevant info

 

Why not try this !!

Ensure a cylinder is on BDC after power stroke (ie both valves closed)

Measure accurately fluid entered into cylinder through plug hole

Then put another cylinder on TDC (compression stroke) both valves shut

Again fill up accurately with measured fluid

This will give you sufficient figures to work out CR without stripping what is a perfectly good running engine

Never tried this but the theory should work !

 

can you not ask for a reciept for the pistons used?

 

Doesnt help if head has been skimmed though

 

nor the fact all head chambers vary in size, plus the fact pistons are machined to create the desired CR (usually)

 

But the liquid will probably pass by the rings.??..