MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: deano65 on March 20, 2012, 11:06:42 am

Title: Cam follower T.D.C
Post by: deano65 on March 20, 2012, 11:06:42 am

Hi again

further to changing cam follower ,do i have to set T.D.C before changing it..??

Thanks

Title: Re: Cam follower T.D.C
Post by: rich83 on March 20, 2012, 11:09:38 am

Mine was done without setting TDC.

Title: Re: Cam follower T.D.C
Post by: vRS Carl on March 20, 2012, 11:11:37 am

It is recommended as part of the process but it isn't necessary. It is there so that the cam lobe (which is egg shaped) is at it's thinnest point. This then removes any tension on the pump piston & spring.

It's mainly so you don't damage/bend the piston when putting it back together.

When i changed my pumps from APR back to OEM i never bothered with setting TDC :happy2:

Title: Re: Cam follower T.D.C
Post by: deano65 on March 20, 2012, 11:15:39 am

Cheers Buds  :wink:

Title: Re: Cam follower T.D.C
Post by: 56OctyVRS on March 20, 2012, 12:05:55 pm

The best way of refitting the pump is to place the pump in the recess and loosly fit the screws.  Then just gently tighten each screw in turn and it will go in without any bending or damage.

Title: Re: Cam follower T.D.C
Post by: robdf2 on March 20, 2012, 10:17:38 pm

i also think if you set at tdc there is minimal compression needed on the spring when re-inserting the follower and doing back up the bolts on the fuel pump.

Title: Re: Cam follower T.D.C
Post by: bacillus on March 20, 2012, 10:45:57 pm

Just be careful when tightening the bolts and don't exceed the spec torque setting.   :smiley: