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Serpent33
Alfa Sprint
Joined: 06 May 2003
Posts: 210
Location: Singapore
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 Posted: Tue Sep 30, 2003 1:48 am Post subject: Clacking after changing new hydraulic lifters. |
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I changed cams as well. at 180 duration and about 11mm lift. What are the chances of me getting faulty tappets? an They are original ones and the sound is coming from both sides. The exact sound when the hydraulics are worn.
Thanks for any feedback.
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Each time I speed I say, "Dear lord, make me fast and accurate..." |
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Rob Currie
Alfa Arna
Joined: 29 Sep 2003
Posts: 5
Location: Irene, South Africa
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| Posted: Tue Sep 30, 2003 11:11 am Post subject: |
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My 33 1.7 16v had an hydraulic tappet lock up at 25 000 km which wore a lobe off the cam. It had sounded like a worn small end conrod bush but was eventually diagnosed as a tappet. At the time there was a shortage of spare tappets in Europe which leads me to think that this could have been a common problem. After rebuilding the RH cylinder head and road testing the car, a tappet in the LH head developed the same problem. Luckily that cam wasn't damaged.
Best to double check that noise.
Rob |
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Guest
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| Posted: Wed Oct 01, 2003 12:06 am Post subject: |
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Have you got all the air out of the system??
Take the plugs out and turn the engine over for a few minutes and see if this solves it. |
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Guest
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| Posted: Wed Oct 01, 2003 12:07 am Post subject: |
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| That was me Gary UK posting the previous post, on my lap-top and forgotten my password!! |
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Serpent33
Alfa Sprint
Joined: 06 May 2003
Posts: 210
Location: Singapore
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| Posted: Wed Oct 01, 2003 1:32 am Post subject: |
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Damn! It's really starting to worry me. The previous tappet did worn one of my cam lobes. That's why I changed to brand new ones (and new cams!).
Strangely, yesterday's noises had reduced but still at least one or two distinct tappets still claking. The engine has been started for more than 10 minutes already. Everything should have set in by now.... Now I can't drive my Alfa... Is it possible that the tappets have been kept too long and now has problems?
Another thing is my oil pressure reads below 3 bar upon revving. Thanks for the response.
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Each time I speed I say, "Dear lord, make me fast and accurate..." |
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GaryUK
Guest
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| Posted: Wed Oct 01, 2003 9:37 am Post subject: |
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| By running it with the plugs out you WILL get rid of air in the tappets, you won't with the engine running |
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neo
Alfasud
Joined: 14 Mar 2003
Posts: 68
Location: Rijeka, Croatia
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| Posted: Wed Oct 01, 2003 7:05 pm Post subject: |
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| Serpent33 wrote: |
Another thing is my oil pressure reads below 3 bar upon revving. Thanks for the response. |
That is too low. It should be atleast 4 bars when engine warm.
Maybe you have air in the system, or the oil pump is worn, or the bearings. |
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Serpent33
Alfa Sprint
Joined: 06 May 2003
Posts: 210
Location: Singapore
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| Posted: Thu Oct 02, 2003 1:38 am Post subject: |
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I'll try to get a pump today. I don't think I'd like to drive with that kindda sound.
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Each time I speed I say, "Dear lord, make me fast and accurate..." |
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