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noisy tappets ???
Posted: 01 Oct 2009, 17:28
by umgum
i have just had my engine rebuilt by my m8 2.0l Aircooled
did the hydraulic tappets as per instructions done about 50 mile so far and something is still noisy
gets worse as engine gets warm
Re: noisy tappets ???
Posted: 01 Oct 2009, 17:30
by kevtherev
umgum wrote:i have just had my engine rebuilt by my m8 2.0l Aircooled
did the hydraulic tappets as per instructions done about 50 mile so far and something is still noisy
gets worse as engine gets warm
Did your mate renew the tappets?
Re: noisy tappets ???
Posted: 01 Oct 2009, 17:40
by umgum
all new
Re: noisy tappets ???
Posted: 01 Oct 2009, 17:49
by umgum
engine had
new cam
new bearings
new hydraulic tappets
the noise seems to be coming from the left hand side center as you look at it from the rear
Re: noisy tappets ???
Posted: 01 Oct 2009, 19:03
by kevtherev
so did he fill them before fitting
Re: noisy tappets ???
Posted: 01 Oct 2009, 19:34
by umgum
yep took the clip out filled them put clip back in (bit of a pain in the a***)
Re: noisy tappets ???
Posted: 01 Oct 2009, 19:38
by jason k
is the pushrod seated correctly ken??
you will be able to hear which side it is. whip the rockers off and check.
or
it could be youve just not driven far enough yet to pressurise it......
Re: noisy tappets ???
Posted: 01 Oct 2009, 21:10
by umgum
so how would i check the pushrod seated properly (wish i`d built it myself)
Re: noisy tappets ???
Posted: 02 Oct 2009, 17:29
by toomanytoys
"set correctly"???? Personally I would only ever pur 1/2 (Half) a turn on as preload from just touching.. if 2 turns it prob wont clear for ages..
Take rocker cover off use a small torch, shine it down the pushrod tubes and look to see if the pushrod is in the middle, in its cup... but it it isnt it will be mashed by now.. and if it was when it was installed it prob will have dropped back in and the rocker is loose....
What oil you got in it? 15w40 is best... anything thinner may cause it to leak down..
Re: noisy tappets ???
Posted: 02 Oct 2009, 18:17
by umgum
cheers will have a look tomoz
Re: noisy tappets ???
Posted: 04 Oct 2009, 09:36
by umgum
ok all rods are in the middle my m8 set the tappets as per haynes manual is this correct
Re: noisy tappets ???
Posted: 04 Oct 2009, 12:46
by VWCamperfan
Although the Haynes manual tells you to turn in a further 2 turns after contact, VW now recommend about three quarters of a turn to one turn.
The manual wasn't wrong when published, just a bit out now but it should still be ok with the Haynes settings.
Would still change it though just to be sure.