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pedenjohn
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When yoou remove the oil cap, the idle increases "ever so slightly" which as you explained earlier, eliminates the noise. yea, i can see why your saying that, the idle becomes a little iratic, but i wouldnt say it raises the idle, certainly not on the gauge anyway. ive experimented with raising the idle alone and it takes a fair bit of an increase to remove the tick, much more noticible than slacking the oil cap, if that makes sense.
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bit of an update on this problem. ive discovered that the ticking stops when the oil filler cap is removed, yes realy :huh: any of you technical guys able to point me in the direction of any oil breathers for the engine which i could check?
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thanks for the quick response. yes, i certainly dont doubt that at 114,000mls the engine could certainly be worn, but as i say it has been doing it for some time now and its definitely a tick rather than a knock. the climate here in the uk is that little bit colder so im wondering if the 15w-50 would be ok to use, certainly any specialist ive spoke to localy has stongly advised against its use. 5w50 sounds like a better option but who would make it? would my car have a variocam? since the variocam only comes in around 1300rpm, im wondering could the chain be slack when it warms and expands or have worn chain followers. hence when the revs rise, the variocam cuts in, the slack is taken up and the noise stops? does this sound likely or even possible?
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hello there, ive search the entire forum and this seems to be the only post which relates to the problem im having. basicly, ive a 98 3.4 996, it has 114,000 miles on it, 10k of which ive put on it myself. ever since i bought it the engine has ticked, but only when warm and the presure drops to around 1bar. by increasing the revs ever so slightly it disapeares entirely. to me it sounds like a valve lifter, but its not as i have replaced all the lifters on the right hand bank from where it is coming. ive also tried various oils, it practicly disapeard when using 15w-50, but the oil presure was very high and so i changed it back to 0w-40. has anyone any suggestions to point me in the right direction? i dont think it would be a piston bearing as surely it would have gave up many miles ago, and get louder with engine revs. something to do with the timing gear/chain perhaps?
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the answer is that you bould be able to bolt it on, but it the gaps would be all wrong. hes a link to a site i found a while back http://212.67.202.62/~clubauto/996_to_997_conversion.htm , it shows them doing a 997 conversion on a 996 and as you can see they have had to modify the wiper panel in pics 10/11. i suspect that the 997 tailgate is also slightly shorter, since the bumper rises up to meet it. also, i put 997 lights into the back of my 996 and found that the profile of the lights is different where it meets the tailgate. i think you could get it to fit, but only with massive amounts of modification. i was thinking about this before, what would stop you, cutting the spoiler part off the 997 gt3 engine cover and bonding/moulding it to your original engine cover, most decent bodyshops should be up to that.