Engine block sealer

Reply Subscribe

Thread Tools

Search this Thread

Aug 20, 2022 | 05:56 PM

redwingvette

Thread Starter

Safety Car

Joined: Aug 2001

Posts: 3,681

Likes: 200

From: Waterford Mi

Engine block sealer

Does anyone use this stuff?
the topic came up in conversation the other day and I had never heard of it.
I’ve never been one to use “magic dust”

Aug 21, 2022 | 04:21 AM

derekderek

Race Director

Joined: Jul 2015

Posts: 13,082

Likes: 3,399

From: SW Florida.

i hope it was just talk and not something that you need. you dump sealer in if it is something you have to TRY to keep driving. usually don't succeed...

Aug 21, 2022 | 06:29 AM

Mr D.

Team Owner

Joined: Mar 2002

Posts: 44,627

Likes: 1,826

From: Huntsville AL

Snake Oil.

Aug 21, 2022 | 08:16 AM

Rescue Rogers

Is my vette stock?? HAHA

Joined: Oct 2015

Posts: 20,114

Likes: 9,242

From: Im not allowed to tell you

2020 C3 of the Year Finalist - Modified

2020 Corvette of the Year Finalist (performance mods)

2019 C3 of Year Winner (performance mods)

2016 C3 of Year Finalist

got a link...is it for oil or for coolant? JUst remember that all the holes that are leaking may be the same size as the smallest holes that the coolant or oil flows through inside the engine or the radiator....its like putting a bandaid on a gunshot wound...

Aug 21, 2022 | 09:59 AM

redwingvette

Thread Starter

Safety Car

Joined: Aug 2001

Posts: 3,681

Likes: 200

From: Waterford Mi

I don’t need it, just wondering what the benefit would be. One of the guys I was talking with said he used it in his motor because he used studs instead of bolts to hold his heads. I don’t know why that would make a difference

Aug 21, 2022 | 02:20 PM

kossuth

Burning Brakes

Joined: Jan 2003

Posts: 961

Likes: 275

From: Frederick MD

Quote:

Originally Posted by redwingvette

Does anyone use this stuff?
the topic came up in conversation the other day and I had never heard of it.
I’ve never been one to use “magic dust”

What they were most likely talking about was Glyptal. The stuff was originally developed by General Electric to insulate electric motor housings etc. what was discovered way back when was that Glyptal also acts as a sealer on porous castings and also promoted oil drain back. Alot of racing engines were painted inside with this stuff to promote oil drainback with the intent to lessen crankcase windage.

I’ve seen this stuff used ALOT inside high pressure gearcases like hydraulic pumps and hydraulic motors etc. I’d bet that is what they were talking about.

Last edited by kossuth; Aug 21, 2022 at 06:05 PM.

Aug 21, 2022 | 02:40 PM

Rescue Rogers

Is my vette stock?? HAHA

Joined: Oct 2015

Posts: 20,114

Likes: 9,242

From: Im not allowed to tell you

2020 C3 of the Year Finalist - Modified

2020 Corvette of the Year Finalist (performance mods)

2019 C3 of Year Winner (performance mods)

2016 C3 of Year Finalist

I use glyptal and it does help get the oil back into the sump. The price is pretty high and its hard to come by now a days. I debur the casting flash in and around the lifters and then coat it all in glyptal being careful not to get it in the lifter bores. I've also seen it in the lifter valleys of the heads as well

Aug 21, 2022 | 03:16 PM

Avispa

Safety Car

Joined: Mar 2009

Posts: 4,191

Likes: 950

From: Corpus Christi, TX

According to more than one former GM plant employee on the C1/C2 forum, the factory routinely dropped magic dust in the cooling system before new ones rolled off the line. Not in the oil system.

So tell me what you'd do if you'd spent a cr@p ton of money Onan essentially unreplaceable correct number block only to find a hairline crack in the water jacket inside the cam tunnel. Depressing is seeing drops of green coolant on the windage tray while you have the intake off. Yeah, magic dust. Until it was possible to send the block for repair. The magic dust did the job. Bars Leaks.