Stuck Jug on a '74 T500

[celt_rock]

Hey folks,

Any ideas out there for a jug that just refuses to come off? I've got the head off, piston moves freely, all bolts are out but the bugger just won't budge. I removed the left head and jug without much difficulty, a little tap and it came free of the gasket. This one not so much.

[Craig380]

It will be some corrosion between the steel studs and the alloy jug. Try running some Plus-Gas or similar releasing fluid down the stud holes, leave for 24 hours, then tap upwards with a rubber or nylon mallet on the exhaust port.

I don't know if it's available in the US but ACF-50 anti-corrosion fluid is great for things like this, it dissolves the rust.

[celt_rock]

It will be some corrosion between the steel studs and the alloy jug. Try running some Plus-Gas or similar releasing fluid down the stud holes, leave for 24 hours, then tap upwards with a rubber or nylon mallet on the exhaust port.

I don't know if it's available in the US but ACF-50 anti-corrosion fluid is great for things like this, it dissolves the rust.

Thanks Craig, I just checked and looks like I can order it online for about $14. I've found the stud that is the culprit, I should have known, when I pulled out the bolt it was horribly rusted and when I put it to the wire wheel it unveiled a host of pockmarks and pitting, I can only imagine what the dowel looks like down inside. Before getting your post I filled the hole with Liquid Wrench. I'll let that sit and then give it a shot tonight. If nothing I'll order the ACF-50 (I imagine this won't be the only time I'll use it) and give that a go. Thanks!

[Pete O'Dell]

diesel fuel is one of the best penitrating fluids going, you can also make a pulling plate up using a head gasket as a template, bolt it on by the 8mm holes and put pressure on the studs with 10mm (or 12) bolts, use some heat helps if you have gas kit