Sealing chemical metal (engine cover)

[Misc]

Evening,

Patched up an engine cover with Chemical metal & it's done a good job but oil is now starting to soak through, it's not leaking yet tho. Going to take the cover off again but wanting some sort of oil sealant that can withstand the heat. Will apply this over the chemical metal (hopefully)

Any ideas?

Thanks.

[Itchy]

Why don't you look for a used one on ebay or davidsilvers or something? If it doesn't hold first time then second time is doubtful. My CBer engine cover was £13 on evilbay. Don't forget £4 for a gasket too.
____________________
Spain 2008France 2007Big one 2009 We all die. The goal isn't to live forever, the goal is to create something that will. In the end, your life will flash before your eyes. Make sure it is worth watching.

[Misc]

What do you mean by hold? The chemical metal is holding fine, the oil isn't getting through cracks or gaps, just seems to be soaking through.

I've looked a few times for a new cover but prices don't seem to drop below £40, or there's not the side i need.

£13 sounds like a good deal, will keep a look out.

[stinkwheel]

Not all chemical metals are the same.

JB weld is one of the best.

They used to paint the inside of alloy crankcases with heat resistant enamel paint on some older brit bikes because the alloy was pourous. This would probably work in what you're doing too.

Not sure what modern oilways would make of it if any flaked off though.

You will have great difficulty in getting anything to bond to porous chemical metal soaked in oil. I'd suggest taking it off, degreasing and starting from scratch.

If it's a small hole, you could also put a nut and bolt through it (providing it doesn't foul any moving parts on the inside) with o-rings either side.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Misc]

[Walloper]

Araldite have a metal based glue which works well.#
But JB Weld is a known winner.

You need to ensure the area is completely free of any grease/oil.

Use paint thinners to dry it off. before putting the glue on.
Lean the bike over so the oil can't reach the repair.

Rough up the area to provide a 'key' for the glue to lock into.
Most glues rely on mechanical properties to bond.
It hooks into microscopic surface imperfections between parts.

(Some glues melt the base material and weld on.)
____________________
W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair

[Misc]

[stinkwheel]

It may be worthwhile glueing something over the top of it using the chemical metal. Glues work best at sticking one thing to another rather than just sitting on top of one surface. A wee bit of alloy plate cut and bent to shape for example.

Or you could get it welded.

Another option is lumiweld low temperature aluminium solder, also a permanant fix.

As has been said, degreasing is essential. I use brake cleaner to degrease metal prior to glueing.

Mind you. That a bandit? £50 will get you a pattern engine cover if it is. People are always crashing bandits.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Misc]

[ZRX61]

[Casper]

Is that the bandit/teapot gsx engine? Lots of them in brakers. Also join this forum https://forum.oldskoolsuzuki.info/cgi-bin/Yabb/YaBB.pl as there are lots of these engines getting broken for parts as lots of projects being built.

[Robby]

For the sake of £50 just change the part. If you're not planning on keeping it long then you'll need to change the part to sell it, no one is going to buy a bike with a crankcase cover held together chemical metal soaked in oil.

[evoboy]

Araldite wont let oil through.

Ive used it on the inside of the genny cover on my zx6 after it was worn down till the metal was porus.

Not been a problem in 20k miles.
____________________
Suzuki GT250 x7------- Fazer 600------CB250RS------Aprilia Rally 70----- Bandit 600

APT Motorcycles

[Gazdaman]

I bet you could get a solid second hand one of those for a tenner. I went through a couple of those when I had a Bandit.

Gaz

[Misc]