North American Motoring - timing chain replacement

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gymnastcoach

07-19-2018 11:45 AM

timing chain replacement

is it possible to pre tension the timing chain without a torque wrench? most i have seen dont measure that low. seems to be .6nm. can i just use the actual tensioner and then torque the sprockets? i have a 2009 r56 cooper s. breaking it down now, need some input before reassembly. thanks for any replies

MiniToBe

07-19-2018 01:11 PM

I never used the pre-tensioner.

jglover

07-19-2018 01:13 PM

Just did mine last weekend. That seems to be what I did. You have the camshaft locking tool? I set the tool then took apart. On reassembly, I put the tensioner in then torqued the cam gears and then crankshaft.
Hope this helps and makes sense.

S-2013

07-19-2018 01:13 PM

Same here, just went ahead and torqued down the permanent tensioner.

Notcompensating

07-19-2018 03:51 PM

I used the pre tensioner but just tightened it hand tight. It's better than the actual tensioner because the real tensioner is a spring type. The pre tensioner keeps the slack out while you torque it

dmyer

07-20-2018 11:45 AM

Quote:

Originally Posted by Notcompensating (Post 4407575)

I used the pre tensioner but just tightened it hand tight. It's better than the actual tensioner because the real tensioner is a spring type. The pre tensioner keeps the slack out while you torque it

That... it is what I did... there is a reason it is part of the procedure!! :thumbsup:

gymnastcoach

08-25-2018 07:10 AM

all back together and running better than ever, ended up getting most of the part at pelican. quick shipping and knowledgeable staff, thank you for all of the replies

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