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REAR MAIN SEAL RPLACEMENT
Posted: Thu Jul 23, 2009 12:24 pm
by ANDREWGQ 351
I have a leaky main seal in my 308, its a rope block.
With the motor out should i remove
sump,
timming cover and chain,
unbolt and push pistons to top of bore
take crank out.
Will this method work or create issues, this way i can leave pistons in bores heads and manifold on.
thanks
Posted: Thu Jul 23, 2009 12:38 pm
by RUFF
You can replace the rope seal by just removing the rear main cap. You just need the tool to do it which is kind of like a cable you pull the seal through with.
Posted: Thu Jul 23, 2009 12:47 pm
by ANDREWGQ 351
The rope seals i have fitted in the past to rebuilt motors have needed to be hit in a little, so i ddint think that i would be able to do it by dragging the new one through
Posted: Thu Jul 23, 2009 12:49 pm
by Big_GQ
sump off losen the main caps and the tool is called a sneaky pete thread it in and pull it out,dont put a neopreme seal back in use rope again apply small amount of sealant on corner of seal were they meet up.
Posted: Thu Jul 23, 2009 1:04 pm
by want33s
I've done a rear main on a 253 without undoing conrods.. Just undo main caps and lift the crank just enough to get old seal out and new seal in.
The way you described will work though.
Posted: Thu Jul 23, 2009 1:35 pm
by ANDREWGQ 351
I will try just the caps and is that doesnt work then i guess its the sneaky tool or crank out
thanks guys
Posted: Thu Jul 23, 2009 5:01 pm
by PJ.zook
Farking rope seals, worst invention ever i reckon. Gonna have to do mine soon too on the 304
Posted: Thu Jul 23, 2009 5:20 pm
by -Nemesis-
PJ.zook wrote:Farking rope seals, worst invention ever i reckon. Gonna have to do mine soon too on the 304
Agreed, lucky I don't own one. Just did my 1UZ, once the box was out it took all of a minute to pop out the old seal and in with the new
