drivetrain alignment

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rflint101
Posts: 3
Joined: Tue Jul 30, 2019 4:34 pm
Location: Aylesbury

drivetrain alignment

Post by rflint101 » Sun Aug 11, 2019 3:27 pm

Hi All
My first post so be gentle...
I have started by T4 build and am enjoying the challenge :D
As suggested in the build guide, I have installed the reversing box and connected the front and rear drive shafts.
I've then put the rear subframe on and hung the CARC on it, and connected everything up.
Took some jiggling in order to get things to line up and slot the splines together, so I was pleased to get this far.
The whole train turns smoothly with no noise ...HOWEVER, when the CARC is at the bottom of its travel the UJs clunk and stop turning.
There's clearly interference somewhere, by the sounds of it where the rear shaft passed through the bulkhead and into the CARC.
I can't see anyway of adjusting this out of the system though.
The shaft is centred on the hole nicely (although it emerges at an angle because of the alignment of the box and suspension).
Any ideas please??
Cheers,
Bob

Richard and Pat
Posts: 321
Joined: Wed Sep 26, 2018 2:44 pm
Location: Biggleswade

Re: drivetrain alignment

Post by Richard and Pat » Mon Aug 12, 2019 7:45 am

What limits the travel on a CARC system?
Good luck
Richard

rflint101
Posts: 3
Joined: Tue Jul 30, 2019 4:34 pm
Location: Aylesbury

Re: drivetrain alignment

Post by rflint101 » Mon Aug 12, 2019 9:21 am

The geometry of the swing arm. The shock is disconnected

westendguzzi
Posts: 242
Joined: Tue Sep 25, 2018 7:30 pm
Location: Huntingdonshire

Re: drivetrain alignment

Post by westendguzzi » Mon Aug 12, 2019 9:38 am

The shocker is more likely to limit min/max travel than the swinging arm.
Determine where those points are and you may have the answer.
Good luck.
Tony

Richard and Pat
Posts: 321
Joined: Wed Sep 26, 2018 2:44 pm
Location: Biggleswade

Re: drivetrain alignment

Post by Richard and Pat » Mon Aug 12, 2019 10:32 am

Hence my question Bob,
Tony has nailed it as the shocker limits the top and bottom positions.
ATB

rflint101
Posts: 3
Joined: Tue Jul 30, 2019 4:34 pm
Location: Aylesbury

Re: drivetrain alignment

Post by rflint101 » Mon Aug 12, 2019 10:49 am

Yes I agree
I’m going off the build notes though which say disconnect the shock and test it then...

MarkG
Posts: 2
Joined: Sun Mar 31, 2019 2:09 pm
Location: Dorset

Re: drivetrain alignment

Post by MarkG » Mon Nov 25, 2019 9:25 am

Bob,

Hope all is progressing well and that you have sorted out the drivetrain issue, I found getting the best alignment quite a long process of trial and error.
I've recently completed my Type 4 build sorting out various issues,(with Alan's help), along the way.
Please feel free to contact me if there is anything I might be able to help with, including MSVA test preparations.

Best wishes,
Mark

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