All, My '98 Corsa 75k miles starts with a tappety noise when it has been stood for a day or so, when used frequently there is no problem. This noise improves fairly quickly once the oil gets circulating and the car settles down to 'normal' engine sound. I had this on another Vauxhall a few years ago and was told then that the lubrication to the first or was it the last pot was not getting through the normal pipework and therefore it had to wait for the overspill in the rocker cover to lubricate that area. Now my question is:- is there a quick fix or is it a case of waiting till the camshaft is totalled and needs replacing? I had wondered whether flushing the engine might clear the blocked orifice? Any ideas, thoughts or experiences would be appreciated. Cheers Ben.
Tappety Corsa!
Feb 27, 2006
7 Replies
If the correct GM filter is fitted, and acouple of fresh oil changes, say
500 miles apart, with the right 10w-40 oil doesnt improve matters, i'd say the damage is already done. New cam and followers time.I would not recommend an oil flush at this mileage without inspecting the engine first, they often wash so much crap down to the sump it blocks the pick up strainer and you end up running a bearing.
Tim..
Quite possibly will. Before you drain the oil, put a 1/2 litre or so of Automatic Transmission Fluid in and run the car for 10 minutes or so then drain the lot and replace the filter and oil.
The detergent in the ATF is good at removing the gum and varnish that builds up in hydraulic lifters.
please read the replies that were given when you asked this exact question before.
mrcheerful
Thanks for the comments, I will attempt to clear the problem but suispect it'll be a new camshaft and followers as suggested! Mrcheerful- I reposted this question since my original message was never visible to me and therefore I never got the 'original' responses. Thanks again to all Ben.
My apologies if you can't see the original answers. |Mine was: The noise is caused by one or more hydraulic tappets failing to maintain their size while parked. oil pressure restores them after a short time running , the cure is change the oil more frequently with the right oil / and get the tappets renewed if the oil changes don't cure it. some people recommend some atf added to the oil to clean the tappets, I have never tried that.
On a different note: If you press control and h together while in a newsgroup you get to see all posts you have made, try that and see if you can see your original post, as it is still very visible here. To go back to normal just press control and h again.
mrcheerful
Mrcheerful, Thanks for the newsgroup tip, very nice function to have. Although I can see my posts the original 'Tappety Corsa!' is still not there, never mind. Thanks Ben.
Ben,
With the greatest of respect, may I ask you to place your replies at the end of the previous post? If you reply at the start, known as "top-posting", it makes it really difficult for others to follow.
If you are new to Usenet (and we all have been at some point!), it might be best to Google for "How to post to Usenet" or something similar. There are certain conventions that make life easier for us. In some groups, you would be strongly castigated for not posting properly!
Best of luck with the Corsa problem BTW!
Chris
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