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REAR MAIN SEAL RPLACEMENT

General Tech Talk

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REAR MAIN SEAL RPLACEMENT

Post 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
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Post 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.
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Post 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
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Post 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.
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Post 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.
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Post 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
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Post by PJ.zook »

Farking rope seals, worst invention ever i reckon. Gonna have to do mine soon too on the 304
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Post 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 :D
Lovin the FZJ105-T, bling by Ryano
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