Page 1 of 1
1850 engine
Posted: Fri Dec 04, 2020 10:20 pm
by new to this
Been working on an 1850 engine,we had trouble getting the head off,in the end had to cut 5 studs,while cutting the studs have damaged the block face,whats the best way round this now ?
My thinking is have the block face skimmed,but that would leave the pistons sitting high,for the stag you can buy head saver shims,would they work/fit an 1850 ?
Thanks for any advice Dave
Re: 1850 engine
Posted: Sat Dec 05, 2020 10:37 am
by dollyman
Hi Dave, i might get shot down in flames
but the last time this happened on a mates Dolly we filled all the marks with J B Weld. We then carefully rubbed it down with wet/dry with a wood block and then used a straight edge to check. We actually used the same method on the head that had a fair bit of corrosion. The gasket was fitted using hylomar, just a very thin smear. We also used new studs, nuts and bolts. That was approx 7 years and 20k miles ago and has never missed a beat. It does sound a bodge..... But if it works is it a bodge
Tony.
Re: 1850 engine
Posted: Sat Dec 05, 2020 11:07 am
by SprintV8
It boils down to how much damage it’s done.
You could skim the block and the pistons
But that depends on how much is taken off the block and how thick the piston crowns are.
Does the 1850 and the Stag share the same bore size for the saver shim.
I wouldn’t JB weld anything near the piston liner.
Or have a saver shim made.
Re: 1850 engine
Posted: Sat Dec 05, 2020 11:10 am
by cliftyhanger
There is a thick head gasket available. No idea how "extra" but may well be enough.
Just had a block decked for similar reasons, but 30thou off. Will be taking the same off the (new TR7) pistons, although I may well assemble pistons/crank, and measure to get the CR as high as possible.
Re: 1850 engine
Posted: Sat Dec 05, 2020 4:27 pm
by dollyman
The reason for doing my pals car the way we did it, was lack of money. Plus it saved it going to the knacker yard.
Tony.
Re: 1850 engine
Posted: Sun Dec 06, 2020 12:46 pm
by new to this
SprintV8 wrote: ↑Sat Dec 05, 2020 11:07 am
It boils down to how much damage it’s done.
You could skim the block and the pistons
But that depends on how much is taken off the block and how thick the piston crowns are.
Does the 1850 and the Stag share the same bore size for the saver shim.
I wouldn’t JB weld anything near the piston liner.
Or have a saver shim made.
Not sure if stag and dolomite same the same bore size for the saver shim,id have to measure
thanks Dave
Re: 1850 engine
Posted: Sun Dec 06, 2020 12:50 pm
by new to this
dollyman wrote: ↑Sat Dec 05, 2020 10:37 am
Hi Dave, i might get shot down in flames
but the last time this happened on a mates Dolly we filled all the marks with J B Weld. We then carefully rubbed it down with wet/dry with a wood block and then used a straight edge to check. We actually used the same method on the head that had a fair bit of corrosion. The gasket was fitted using hylomar, just a very thin smear. We also used new studs, nuts and bolts. That was approx 7 years and 20k miles ago and has never missed a beat. It does sound a bodge..... But if it works is it a bodge
Tony.
Didnt know JB weld would stick and last on the engine ,hadnt thought of that
Thanks Dave
Re: 1850 engine
Posted: Sun Dec 06, 2020 12:52 pm
by new to this
cliftyhanger wrote: ↑Sat Dec 05, 2020 11:10 am
There is a thick head gasket available. No idea how "extra" but may well be enough.
Just had a block decked for similar reasons, but 30thou off. Will be taking the same off the (new TR7) pistons, although I may well assemble pistons/crank, and measure to get the CR as high as possible.
How would you measure to see how deep the cuts are ?
Dave
Re: 1850 engine
Posted: Sun Dec 06, 2020 1:31 pm
by SprintV8
Straight edge and plasticine.
Plasticine in the cut
Straight edge over the top.
Carefully remove Plasticine and measure.
Photos would help.