_308build_
Posted 10 April 2017 - 07:56 PM
Can someone help please i am building a 308 i have crank in with new oil seal and rear main ( rope seal) caps on and tight
30 thou over flat top ACL pistons caps not tensioned yet still adjusting gaps no heads on yet and it is very tight to turn over my gap clearance on the crank is on the tighter end of requirment it has got tighter since putting rods and pistons in. Any recomendations would be great.
Thanks 
_Bomber Watson_
Posted 10 April 2017 - 08:58 PM
Wind the balancer bolt in the end of the crank and turn it over with that.
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Posted 10 April 2017 - 09:05 PM
Has been Torana owner
Posted 10 April 2017 - 09:15 PM
How did you set the rear main seal up? The last few 308's I have built have been fairly tight due to the rear main seals. I have been using graphite grease on the seals to try and settle them in a bit but they are still tight.
Forum Fan
Posted 10 April 2017 - 09:53 PM
your right about that rodomo.
Lotsa Posts!
Posted 10 April 2017 - 10:24 PM
Read somewhere newer rope seals are made of harder material than originals hence more difficult.
Noticed that come & sam's performance used correct sized round to belt them in.
Come has decent youtube clip showing how they do them & how easy they should turn.
Can also be converted to neo-seal....think my current early red engine was built with one
Edited by gtrboyy, 10 April 2017 - 10:26 PM.
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Posted 10 April 2017 - 10:31 PM
Come has decent youtube clip showing how they do them & how easy they should turn.
_308build_
Posted 11 April 2017 - 09:31 AM
i put my seal in refering to this video i will gap my rods and try again i went over all the ring gaps last night they seem ok might check thrust bearing gap again
i am turning with bolt in end of crank and is very tight
_308build_
Posted 11 April 2017 - 05:42 PM
could the assembly lube have anything to do with it ive read that to much lubr between the bearing and the crank doesnt disperse therfore making it tight around the crank
just a thought
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Posted 11 April 2017 - 08:48 PM
_308build_
Posted 12 April 2017 - 11:18 AM
Once a rope seal goes in, it will be hard to turn. They have to be tight on the crank otherwise they leak. Factory fault. That's why I hate them.
How tight though if i was to turn with a torque wrench what pressure would i be expecting for it to turn at ?
Has been Torana owner
Posted 12 April 2017 - 12:07 PM
I had to use a breaker bar to turn my last one. I was so paranoid about it being too tight but once it started and was settled in was fine. No leaks either so far.
_trna76hb_
Posted 12 April 2017 - 01:38 PM
When I did my rope rear main it was the same.
Had to use a breaker bar to turn it also.
I was worried , all work out in the end & no leaks
Ian
_308build_
Posted 12 April 2017 - 01:58 PM
thanks everyone i feel a bit better knowing others have been tight ill bolt it up and see how it goes !!
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