Classic 44 Year old, seized, corroded V8 rebuild thread.....

[wammers]

I have a ring removal tool, thanks for the offer, but the rings are so well seated and stuck in, that there is no discernible gap to get anything in to spread the ring, not even a tiny punch or drift...I even sharpened a small watch makers screwdriver to a very fine blade and still no joy in getting in the tiny gap.....very mindful not to damage the land or groove....

I am desperately trying to save this engine, I think it can be done, and whilst I have rebuilt a few V8's I have never done one this seized, caked in corrosion or been left for so long with the spark plugs out allowing the world into the bores!!

once I get the rings out, it is time to turn attention to the heads.....which I think is the part I am really not looking forward to, as the valves, guides, seals and seats are no doubt shot.....

I have looked through our machine tools and I don't have a 46deg cutter of the right size to clean the valve seats, so hoping they are not too shot and can get way with a good scrubbing.....The LR tool for valve seat cutting is not a stock item, lead time is after Christmas and is about £140....

https://jlrequipment.service-solutions.com/en-GB/Pages/ItemDetail.aspx?itemID=47239&catID=331790

So that's out.....with luck they aren't burnt, pitted or cracked.....looking at how the rest of the engine has cleaned up not to bad, it is hoped the heads will do the same.

Researching other makes of 46deg cutters....America looks like the most common place for them

Once the heads are stripped....time for a cleaning spree...

Boiling them in a pan of water/vinegar may do some good.

 

[Saint.V8]

Boiling them in a pan of water/vinegar may do some good.

Boil the pistons??

 

[classic888]

Soak them in that horrible stuff (diesel). It does have its uses.

 

[wammers]

Boil the pistons??

Yep. Boil them in water and vinegar mix then drop into cold water. Repeat a few times may loosen the rings, has been done before Ant with various success.

 

[Saint.V8]

Anything is worth a shot s they ain't budging and are solid in their grooves

 

[jamesmartin]

just soak them in paraffin

 

[Dippypud]

Yep. Boil them in water and vinegar mix then drop into cold water. Repeat a few times may loosen the rings, has been done before Ant with various success.

You forgot to warn him how long the smell lingers ...
Paraffin is what you need to soak them in ...
or cola if you don't want to waste time ...

 

[wammers]

You forgot to warn him how long the smell lingers ...
Paraffin is what you need to soak them in ...
or cola if you wan t to waste time ...

Soak them in paraffin after the boil by all means but you need something to cause them to expand and contract to loosen them.

 

[Dippypud]

Soak them in paraffin after the boil by all means but you need something to cause them to expand and contract to loosen them.

Cola has been known to dissolve said rusticles ...

 

[wammers]

Cola has been known to dissolve said rusticles ...

This is true. Brown sauce is also a good cleaner but it's penetration powers are limited.

 

[mozz smith]

Yep. Boil them in water and vinegar mix then drop into cold water. Repeat a few times may loosen the rings, has been done before Ant with various success.

and 2 large eggs then get the toaster on .. perfect poached eggs on toast !!!!!!!!!!!! now get on with it ant ,oh and thumbs up mate ???? ho ho ho ,,,your doin a fantastic thread , mozz

 

[Grrrrrr]

What's corroded? Is it aluminium oxide or rust? Hydrocloric acid might shift aluminium oxide but dribble and don't leave on long. Wonder if that Halfords alloy wheel cleaner would do anything?

 

[tomcat59alan]

and 2 large eggs then get the toaster on .. perfect poached eggs on toast !!!!!!!!!!!! now get on with it ant ,oh and thumbs up mate ???? ho ho ho ,,,your doin a fantastic thread , mozz

Trust you to think of food ( Mozz the Manc cake muncher)

 

[tomcat59alan]

Anything is worth a shot s they ain't budging and are solid in their grooves

Do you mean you don't have an untrasonic bath in that workshop, tut tut, speak to the power's that be.

 

[Fergie46]

50/50 diesel and paraffin bath for a good long soak and also the boiling treatment as suggested is worth a go.

This treatment obviously doesn't work for thumb repairs.

 

[Saint.V8]

Not having much success boiling the pistons.......

Cannot get the rings to budge.....

Trying another boil up now...... Will post results

 

[Grrrrrr]

Not having much success boiling the pistons.......

Cannot get the rings to budge.....

Trying another boil up now...... Will post results

How about a second ice bath next to it and swap between?

 

[Saint.V8]

I have a bucket of cold water too....

Dunking in there seems to make little difference!

 

[Grrrrrr]

I have a bucket of cold water too....

Dunking in there seems to make little difference!

How about packing ice into the piston and the tickling a blow-torch on the ring? Failing that I might have some conc. HCl in the shed but it is pretty vicious stuff.

 

[Saint.V8]

and 2 large eggs then get the toaster on .. perfect poached eggs on toast !!!!!!!!!!!! now get on with it ant ,oh and thumbs up mate ???? ho ho ho ,,,your doin a fantastic thread , mozz

Hee Hee Mozz.....was thinking of throwing in a couple of eggs, but the smell of boiling vinegar is enough to turn the stomach, so I thought better not!!!!....