Cylinder Head Gasket Sealant

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Locked
Dannyboy

Cylinder Head Gasket Sealant

Post by Dannyboy » Thu Mar 08, 2007 12:57 am

Advice needed! The Bongo workshop manual tells me I need to use SH780 Sealant when replacing my cylinder head. Not actually on the gasket, but in front of it.

Does anyone know what SH780 sealant is? No one I have asked has any idea what it is. Would Red Hermetite do?
I wonder what Declan Hicks who wrote the really useful information sheet on changing the cylinder head gasket used.

Any advice would be welcome.

Thanks
User avatar
dandywarhol
Supreme Being
Posts: 5446
Joined: Mon Dec 19, 2005 10:18 pm
Location: Edinburgh

Post by dandywarhol » Thu Mar 08, 2007 8:55 am

http://www.freepatentsonline.com/4704419.html

I'd use Hylomar.......red Hermatite sets hard, Hylomar stays semi pliable DB (are the hills calling? :wink: )
Whale oil beef hooked
Renault Lunar Telstar
Yamaha TD1C 250, Merc SLK200, KTM Duke 690
RobnKathryn

Post by RobnKathryn » Thu Mar 08, 2007 6:41 pm

I didn't use any sealant on mine! Don't take that to mean you shouldn't though. I'm not a mechanic just poor, so followed the factsheet...it didn't mention sealant so I didn't use it! I sort of remember someone somewhere saying you shouldn't use a sealant on head gasket though.

Anyway mines done 5K since repair with no probs, I have developed a paranoid 'check the temp gauge' twitch though, which makes some women feel uncomfortable in conversation!

Rob
aitch
Supreme Being
Posts: 4198
Joined: Tue Aug 15, 2006 9:34 pm
Location: in a place far, far away, well Somerset for now!!!

Post by aitch » Thu Mar 08, 2007 10:08 pm

I think quite a few of us are experiencing the "twitch" I know I am after many sleepless nights hoping the head wasn't cracked ££££££ mine ended up being a pinprick hole in the top hose but I still check coolant daily just in case and watch the temp gauge as much as the speedo (am I sad Or a muppet or what)!!!!!!!!!!!!!!!!!
Be nice to everyone they might be nice back.

Come to the dark side we have chocolate dark chocolate
User avatar
Peg leg Pete
Supreme Being
Posts: 2910
Joined: Thu Aug 25, 2005 7:07 pm
Location: Yorkshire

Post by Peg leg Pete » Thu Mar 08, 2007 10:12 pm

no aitch not a muppet, but a sensible bongo owner :wink:
Image Pete
Locked

Return to “Techie Stuff”