noisy tappets ???

Post by **umgum** » 01 Oct 2009, 17:28

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

Post by **kevtherev** » 01 Oct 2009, 17:30

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?

Post by **umgum** » 01 Oct 2009, 17:40

all new

Post by **umgum** » 01 Oct 2009, 17:49

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

Post by **kevtherev** » 01 Oct 2009, 19:03

so did he fill them before fitting

Post by **umgum** » 01 Oct 2009, 19:34

yep took the clip out filled them put clip back in (bit of a pain in the a***)

Post by **jason k** » 01 Oct 2009, 19:38

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......

Post by **umgum** » 01 Oct 2009, 21:10

so how would i check the pushrod seated properly (wish i`d built it myself)

Post by **toomanytoys** » 02 Oct 2009, 17:29

"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..

Post by **umgum** » 02 Oct 2009, 18:17

cheers will have a look tomoz

Post by **umgum** » 04 Oct 2009, 09:36

ok all rods are in the middle my m8 set the tappets as per haynes manual is this correct

Post by **VWCamperfan** » 04 Oct 2009, 12:46

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.

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