13-07-2021, 11:48 PM
(This post was last modified: 13-07-2021, 11:53 PM by Hedd_Jones.)
I have an interesting conundrum.
Father left his RP to my daughter when he passed. Iv'e been driving it round since as a family car for the last 4 or 5 years but I knew from day 1 it is sick.
At some point after putting a phoenix crank in it, (after breaking the Austin crank), he ran it with no coolant, it got hot and nipped (siezed) briefly. He ran it for a year or so afterwards. Then it came here.
It starts badly from cold, spits oil passed the spark plug washers and fouls the plugs. It did leak oil into the coolant until I changed heads, but this problem has now reoccured. But it goes like stink and never misses a beat.
I've had the head off and the bores look unmarked and not particularly glazed. My conclusion is the rings have lost their tension through the overheating/siezing. I did fancy retempering them for a giggle (low cost) for a minuite, however...
It has recently developed a fair leak between the block and case, and if this block is coming off, its not going back on!. Its a 1927 screw in core plug job which has suffered 2 broken cranks to my knowledge, and is cracked in the centre stud like most.
Father must have known the top end was not good as amongst the 3 or 4 ton of spares was a fully overhauled block. Bored. Studded etc etc. All greased up ready to build up. Plan will be to use this on the existing bottom end which seems 100%.
My problem is that I do not know what pistons were intended for this block
I am currently in isolation as daughter has caught the plague, but once I have freedom I shall get my mate Ken with his internal mic to confirm bore specs.
Is there any reference material anywhere which correlates bore to piston type/supplier?. Clearly I would like to source the most suitable. A days or so of work and I should have a good engine again.
Father left his RP to my daughter when he passed. Iv'e been driving it round since as a family car for the last 4 or 5 years but I knew from day 1 it is sick.
At some point after putting a phoenix crank in it, (after breaking the Austin crank), he ran it with no coolant, it got hot and nipped (siezed) briefly. He ran it for a year or so afterwards. Then it came here.
It starts badly from cold, spits oil passed the spark plug washers and fouls the plugs. It did leak oil into the coolant until I changed heads, but this problem has now reoccured. But it goes like stink and never misses a beat.
I've had the head off and the bores look unmarked and not particularly glazed. My conclusion is the rings have lost their tension through the overheating/siezing. I did fancy retempering them for a giggle (low cost) for a minuite, however...
It has recently developed a fair leak between the block and case, and if this block is coming off, its not going back on!. Its a 1927 screw in core plug job which has suffered 2 broken cranks to my knowledge, and is cracked in the centre stud like most.
Father must have known the top end was not good as amongst the 3 or 4 ton of spares was a fully overhauled block. Bored. Studded etc etc. All greased up ready to build up. Plan will be to use this on the existing bottom end which seems 100%.
My problem is that I do not know what pistons were intended for this block
I am currently in isolation as daughter has caught the plague, but once I have freedom I shall get my mate Ken with his internal mic to confirm bore specs.
Is there any reference material anywhere which correlates bore to piston type/supplier?. Clearly I would like to source the most suitable. A days or so of work and I should have a good engine again.