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| Tappity tap after belt re-tension https://forums.tipec.net/viewtopic.php?f=25&t=16367 |
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| Author: | Matey [ Fri Oct 25, 2013 3:31 pm ] |
| Post subject: | Tappity tap after belt re-tension |
Just been to pick my S2 up from my local indy after belts re-tension, started it up and it sounds very tappity and I think a tiny bit lumpy. Something isn't right so I've left it there, I've not had any rattly/tappy noises before. Is it just coincidence I've suddenly got a lazy tappet. No other work was carried out other than the re-tension and I leave the car 2 weeks at a time sometimes and it's always quiet on start up until now. |
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| Author: | broady_6 [ Fri Oct 25, 2013 5:26 pm ] |
| Post subject: | Re: Tappity tap after belt re-tension |
hasnt slipped a tooth when they let the tension off has it? |
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| Author: | Althejazzman [ Fri Oct 25, 2013 9:36 pm ] |
| Post subject: | Re: Tappity tap after belt re-tension |
Could it be bearing rattle from the water pump because the tension is too much for an old pump? |
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| Author: | AlpineTurbo [ Fri Oct 25, 2013 10:07 pm ] |
| Post subject: | Re: Tappity tap after belt re-tension |
For your sake I hope that a tappet has simply become lazy and that it will cure itself. However, there is a chance that the water pump may have gone, or worse the belt has slipped resulting in some serious consequences. Saying that, I have once or twice seen tappety engines being rescued by simply retiming them. It makes no sense whatsoever, but maybe pre detonation was occurring. |
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| Author: | Matey [ Fri Oct 25, 2013 10:30 pm ] |
| Post subject: | Re: Tappity tap after belt re-tension |
Pump rollers etc all replaced a few months ago along with the belts, this is just a re-tension after 1600 miles. Pump is OEM but I have heard of new pumps failing in a few months so won't rule that out. Hopefully it's just a lazy lifter I'll know on Monday, I'll get the engine flushed while it's there if that's the case. If it's jumped a tooth it would have been when I started it up. |
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| Author: | broady_6 [ Sat Oct 26, 2013 7:10 am ] |
| Post subject: | Re: Tappity tap after belt re-tension |
pump could have gone, "just a retention" it may have failed before the retention, but not shown its face until it was disturbed. But lets hope it hasn't, |
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