Thread: Why silicon sealants should not be used on engines.

Originally Posted by chazza

The rocker covers are next and I don't have to guess what will be wrong there!

V8?

The rocker cover screws come loose. Quite common. You'll need a 1/4" drive socket that's 12 point - most are hex.

G`day chazza ,

it`s not the silicone at fault it`s the peanut that applied it .

Holomar , i feel is better for these V8s though and i`m not a big fan of gaskets with tin sumps .

Cheers

Originally Posted by PLR

Holomar , i feel is better for these V8s though and i`m not a big fan of gaskets with tin sumps .

Hylomar is even better!

Yes; quite agree PLR.

I have used Loctite Black Max this time so I will see how it goes. Also found that the manual is wrong when it blithely tells me to unscrew the fasteners and remove the sump. I found it necessary to disconnect the steering damper and drop the track rod off the right hand side first,

Cheers Charlie

Originally Posted by chazza

I found it necessary to disconnect the steering damper and drop the track rod off the right hand side first,

Cheers Charlie

Could have jacked the car up a little

Originally Posted by chazza

Yes; quite agree PLR.

I have used Loctite Black Max this time so I will see how it goes. Also found that the manual is wrong when it blithely tells me to unscrew the fasteners and remove the sump. I found it necessary to disconnect the steering damper and drop the track rod off the right hand side first,

Cheers Charlie

You can get it out if you jack the chassis up until the front wheels are off the ground or at least up a bit.

Originally Posted by chazza

Today I took the sump off and found (predictably) a broken gasket smeared with some silicon crap.

"dodgey brothers mechanic shop", just round a corner near you! Guaranteed to bodgy a job, for a bob!

I hate those assholes!
Unfortunately there are far too many of them.

A good mechanic is hard to find an idiot with a spanner is plentiful! I bought a Jaguar botched by one

Finish rant!

Ron M

I can remember when Silastic was released into the Australian market in about 1975 - amongst al lot of things it was marketed as being able to replace head gaskets - at the time as a youngster I was into enduro motor bike riding and had a blown head gasket on my Cooper 250 Motocrosser. Needles to say as being young and vulnerable I use silastic to replace the head gasket - mit worked for about 20km and blew when I was out in the bush - silastic khas never lived up to its extreme promises bit does work well as a general sealant as long as oil and petrol are not involved.

Garry