Datsun100ATurbo wrote:
I cut my engine to pieces tonight and i´m impressed by the cylinderwall thickness! It varies from 5,5 - 7,5mm.

Fandatstick wrote:
Quote:

Datsun100ATurbo wrote:
I cut my engine to pieces tonight and i´m impressed by the cylinderwall thickness! It varies from 5,5 - 7,5mm.

Are these block thicknesses on a standard 76mm bore A14?

D wrote:
Im sure Im speaking on behalf of many people here on this site
"thank you for the pictures and effort in cutting an otherwise
good repairable A15 engine!"

You can see that there is no cooling beetween the 1-2 and 3-4 cylinders
and they actually touch which means the same could be done the to gaps
of 2-3 cylinder in the offset machining.

Now I ask Is it possible you can go further and make another cut at the base
where the sleeves/liners would slide into in a wet sleeve setup?

eg. the pics below show the base of a renault engine and the sleeve used for
its big bore conversion done by Orger engines in Victoria.
On an iron block I wonder if its necessary to coat is with something to stop
corrossion? eg. Would penetrol work? for once the cementing occurs at the base
the lube will be stuck/trapped in there keeping the iron lubed.

Rubey best ask Lemonhead if the extra few mm of the offset bore could be taken
up by the piston pin but most likely crankins need modifying. Im thinking of
using an early a12 block with the 77mm crank for 1666cc and no engineering
but the a15 at 1796cc is just too good to not engineer as 1488cc with turbo or
e16 cranked 1997cc quad-carbed NA snarling torque monster. Its opens a totally
new can of worms to A series benchmarks/possibilities yet outer dimensions of
the A15 would remain so small and compact!!!

A14force wrote:
It would be good to see all the thicknesses of this block Marcus. Maybe place the info in the wiki so that people can reference them in future rather than have to chop up any more engines in the name of science.
I gave a mate an A14 block I had which had bore damage from a smashed piston. He cut that up to measure the deck thickness.
We don't want to see more blocks chopped up than is absolutely necessary.

D wrote:
If you look at the following pics you can see the light blue line
indicating the depth at where it would be good to get a cut.
That way it can be seen what the base would be like where the
cylinder wall meet the floor of the water containment area.

Also Im thinking Marcus you will have trouble with 79mm bores on
the middle 2-3 webbing where its thinner than 1-2 or 3-4 areas.