StormVR6 0 Posted June 4, 2005 Yes my ongoing problem of power loss is still ongoing, and today was the final straw. After having some gimp up my ar*e in a Golf V5 I finally approached a roundabout leading onto a dual-carriageway, well the Golf had done the obvious and started to boot it pass me and I thought sod off, well I thought it but it didn't happen! I used to eat V5's alive!! I drained the engine of about half a litre of oil just to get it down to the MAX level due to Stealth being overzealous with the oil can, but am I right in thinking the CAT could be ruined from the overfill because there are still no faults on the VAG-COM and I am now running out of ideas. Please help people before I buy an Austin Allegro and stick a stage 5 turbo on it for a laugh! Cheers MB Quote Share this post Link to post Share on other sites
Riley 0 Posted June 4, 2005 yep overfilled oil level can knacker the cat,id say only over a longish period though? neil. :) Quote Share this post Link to post Share on other sites
StormVR6 0 Posted June 4, 2005 Right OK, cheers mate that confirms my thoughts and I would think 7 weeks is long enough to knacker it! Right now if the CAT is buggered how much power decrease do we think this might cause? The reason I'm starting to get so peeved over this is because only 7 weeks ago I paid out over £2000 on the C and it repays me with performance drops entitling bloody Golf's to cane it past me! Oh if only I could quench the love affair I have for this headache of a car I would gladly give it away. Quote Share this post Link to post Share on other sites
Riley 0 Posted June 4, 2005 Right OK, cheers mate that confirms my thoughts and I would think 7 weeks is long enough to knacker it! Right now if the CAT is buggered how much power decrease do we think this might cause?. ive seen other motors not run at all due to the cat breaking up and blocking itself m8 :roll: and its meant a new cat each time. im not totally sure what effect oil has on them,i think they just get blocked? dont know what i can suggest really,can anyone help further? hope you sort it m8,neil. Quote Share this post Link to post Share on other sites
JBOB 0 Posted June 4, 2005 Stealth overzealous with oil, that doesn’t sound like them. Who at Stealth did the work ?? Id say 7 weeks is more than plenty of time to screw up the CAT but cant say how much power would be lost sorry :( Quote Share this post Link to post Share on other sites
andy 0 Posted June 4, 2005 Does a knackered cat mean a more restrictive cat? I'm not convinced thats your problem, half a litre of oil surely can't knacker a cat. I'd have thought you would need much more. The only real way to be sure is to get it on a rolling road and see if its producing the power it should be. The Golf could have been tweaked remember. I've had a Golf TDi pull away from me consistently but I suspect it was tweaked ;-) Quote Share this post Link to post Share on other sites
Supercharged 2 Posted June 4, 2005 Do you have a Mocal cooler fitted?? - just these can have an effect on the amount of oil in the sump depending is the stat is open or not when the oil is changed and when the car is stopped... Quote Share this post Link to post Share on other sites
StormVR6 0 Posted June 4, 2005 Yes mate I do have a cooler fitted but the only reason I have mentioned the oil being over the MAX level is because that is the only thing I can think of that might have affected performance due to a buggered CAT. There are no faults reported with VAG-COM therefore I'm just clutching at straws really! Yes andy I know that is possible but I have noticed this performance problem for a good few weeks now and yes a RR would do the job but I haven't got the time or the money to do this. I mentioned in a previous post that the C was tested with a GTech Pro and the results were not good! It seems like another trip to Stealth is materializing! Quote Share this post Link to post Share on other sites
2cc 0 Posted June 7, 2005 better than being beaten with a stick :) Quote Share this post Link to post Share on other sites
StormVR6 0 Posted June 7, 2005 LOLOL very true, anyway the problem was the MAF all along, new one fitted and the car is back to normal!! Cheers peeps Quote Share this post Link to post Share on other sites
dr_mat 0 Posted August 16, 2005 Funnily enough I checked my oil today, first time after a stealth service ... hey presto, overfilled! I was suspicious when they charged my for 6 litres of oil and didn't find any half-empty cans in the car, but assumed they were more professional than that. No I don't have an oil cooler... Time to drive carefully I think. What's the most *reliable* way of draining some oil off? Sump plug? Don't wanna dump it all on the floor in the road outside my house... Quote Share this post Link to post Share on other sites
dinkus 10 Posted August 16, 2005 If you find a way let me know, cos me and Kev managed to over-fill mine at the weekend. My current school of thought is the little drain plug in the oil filter housing.. Quote Share this post Link to post Share on other sites
dazzyvr6 0 Posted August 16, 2005 i would say the drain plug on the oil filter housing Quote Share this post Link to post Share on other sites
Supercharged 2 Posted August 16, 2005 yeah, and then turn engine on and off again to prevent air lockage.... Quote Share this post Link to post Share on other sites
veeDuB_Rado 0 Posted August 16, 2005 http://the-corrado.net/.archive/forum/viewtopic.php?t=28591 or you could have this dave lol Quote Share this post Link to post Share on other sites
StormVR6 0 Posted August 16, 2005 Hmm, this really does p*ss me off, this again just proves that checks are not being carried out. Underfill is always better than overfill, and obviously oil takes time before it completely registers on the stick. When I carry out an interim service I put 5-5.5 litres in, run the car for 5-10 mins and then top up to desired level. Yes again a simple mistake that could feck your CAT, totally unacceptable. Kwik-fit is looking more appealing as I type. Quote Share this post Link to post Share on other sites
StormVR6 0 Posted August 16, 2005 Oh yeah, to update an update, the other problem which was affecting performance.... the vacuum "actuator" which the vacuum line attaches to on the Schrick manifold was fecked. New one bought from Ford (£20), had to adapt it to fit (tap and die job). 1 hour to fit new part, job done, train pull impression has returned. As far as I could tell the flap was only turning a minute amount. I assume the original actuator had a small puncture. Quote Share this post Link to post Share on other sites
dinkus 10 Posted August 16, 2005 :lol: So nothing to do with the oil? I'd still lodge your displeasure with Stealth tho... Quote Share this post Link to post Share on other sites
dr_mat 0 Posted August 16, 2005 The book for the VR says 5.5 litres.. Quote Share this post Link to post Share on other sites
StormVR6 0 Posted August 16, 2005 :lol: So nothing to do with the oil? I'd still lodge your displeasure with Stealth tho... No need, Vince has already received my wrath over many oversights, I think it is time to swat up on the VR and undertake all work myself. I use to do all the work on my previous cars, only with the C did I venture out to the world of mechanics. I have come to realise there is no point, if you do it yourself you know its been done properly, and if it goes wrong you only have yourself to blame. Oh yeah, you save shed loads of cash as well. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted August 16, 2005 Funnily enough I checked my oil today, first time after a stealth service ... hey presto, overfilled! Have you told Stealth about this? The oil takes ages to collect back in the sump on the VR and as I can testify by removing the sump, there's at least 1/4 litre sitting at the bottom that doesn't get drained....plus what ever is still dripping down the oil galleries. So it's best to put 5.5 litres in, rather than 6..... then check the level in the morning. Quote Share this post Link to post Share on other sites
StormVR6 0 Posted August 16, 2005 The oil takes ages to collect back in the sump on the VR and as I can testify by removing the sump, there's at least 1/4 litre sitting at the bottom that doesn't get drained....plus what ever is still dripping down the oil galleries. So it's best to put 5.5 litres in, rather than 6..... then check the level in the morning. A company who specialises in the VR should know this, don't you think? Quote Share this post Link to post Share on other sites
dr_mat 0 Posted August 16, 2005 I've not had chance to speak to anyone at all about it yet.. "put 5.5 litres in rather than 6" - too right, cos 5.5 litres is the book capacity of the VR! If you have an oil cooler it may be different. Quote Share this post Link to post Share on other sites
MoonlightVR 0 Posted August 16, 2005 Oh yeah, to update an update, the other problem which was affecting performance.... the vacuum "actuator" which the vacuum line attaches to on the Schrick manifold was fecked. New one bought from Ford (£20), had to adapt it to fit (tap and die job). 1 hour to fit new part, job done, train pull impression has returned. As far as I could tell the flap was only turning a minute amount. I assume the original actuator had a small puncture. This will be the reason why the V5 breezed past you. If the Schrick flap was staying closed past 4k rpm you'd have about 160 bhp odd bhp at your disposal! :oops: I really doubt the overfill would have destroyed your cat unless it was a massive overfill and your cat was already on it's way out.... If they put 6l in I'd say you're fine. One easy way to find out - go to an MOT station and get a emissions test done. Admittedly Stealth need to be careful they don't overfill cars, but 6l instead of 5.5l isn't going to ruin cars! Quote Share this post Link to post Share on other sites
dr_mat 0 Posted August 16, 2005 You're right, it's probably not going to ruin anything, but it's not very professional..! Vince is a good guy, but on my past experiences I feel like I need to double check everything they've done all the time, which is not good. Quote Share this post Link to post Share on other sites