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TDC not on 1/4 flywheel marks
https://www.ausmini.com/forums/viewtopic.php?f=2&t=80786		 Page 1 of 1
Author:  spfh84 [ Wed Mar 20, 2013 9:26 am ]
Post subject:  TDC not on 1/4 flywheel marks
Hi all,,

this one has me stumped again (seems to be happening a lot lately)...went to install the distributor drive and was setting TDC on firing stroke on no 1 piston...found TDC with the piston and checked on the flywheel and the 1/4 mark is nowhere to be seen... rotated the engine until I lined it up and the piston is well and truly on its firing stroke. How can this be?!?!?!?! Thanks
Author:  drmini in aust [ Wed Mar 20, 2013 9:28 am ]
Post subject: 
If it's a 2 piece flywheel, the outer part can bolt onto the hub in 6 positions. Only 1 is correct.
Obviously someone has had it apart.

I don't use those marks they are a PITA. I weld a pointer to the timing cover (or use a later cover), then file a TDC mark on the pulley.
Author:  spfh84 [ Wed Mar 20, 2013 9:38 am ]
Post subject: 
ok. Is it worth fixing while I have access to it?
Author:  drmini in aust [ Wed Mar 20, 2013 9:40 am ]
Post subject: 
Sure, if it's out of the car... :wink:
When you retighten the 6 nuts (to ~38 ft/lb) centre pop them again in 3 spots so they can't come loose.
Author:  spfh84 [ Wed Mar 20, 2013 9:47 am ]
Post subject: 
thanks again for your wisdom doc! seeing as it was balanced the way it is now will moving it around affect much?
Author:  drmini in aust [ Wed Mar 20, 2013 10:59 am ]
Post subject: 
Nope it shouldn't really change balance, as the hub is steel and machined true all over. Unlike the outer bit which is grey cast iron- that varies in density.
Author:  mickmini [ Thu Mar 21, 2013 11:14 am ]
Post subject: 
i would just buy a new steel flywheel from the UK (i did!) far easier and no (little) chance of it being out of balance.
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