lupo_s_i

Old pistons were shot, I bought the car with a knackered engine after strip down it was assessed to need rebore and pistons (I was shown them and fully agreed) Engine was rebored with new pistons and then was having the issues above. I have seen the damage done to both head and block and completey believe their story it all matches up I have Compared the pistons supplied with original and can see the slight difference. Admittedly they should have noticed it on first build but hey mistakes happen. Car is back with me now after all the fun and games they had (4 months it's been with them with rebuilds and diagnosis) has had all new valve guides (twice for what it's worth) running like a dream now. Saw my engine completely stripped down on Monday and I don't think there is any way if there was further problems in the electrical system that they would have had time to diagnose after rebuilding and reinstalling the engine.

Just a little update incase anyone is Interested. Popped by the engine shop today and they have found what they believe to be the issue. Their supplier sent pistons that were slightly different and didn't have enough clearance cut out at the top of the pistons for the valves. Engine is back in pieces it's totalled the head and is currently being rebuilt for a 3rd time now with the correct pistons so we will see how we go. The builder recogns it was running fine when cold due to extra fuel but once hot correct air fuel mixture couldn't be achieved due to valves not seating properly. Just thought I'd post seen as so many threads don't get closed out. If anything changes (ie there's still a problem once finished) I'll post end findings for future reference. Cheers for everyone's help. Si

Yes it has been test driven and runs completely fine until reaches temperature. Obviously not redlining with being fresh rebuild but definitely runs as it should until warm. It has had a brand new coil pack which didn't make a difference, I'll pop by the garage in the new year and check what vcds is saying

I have already had new temp sensor but will check and make sure a green sensor has been fitted when I visit the garage. That was my first suspicion but its definitely been changed and didn't make any difference to the running

Cheers 🙂

Thanks for all your responses. I'll pop by the garage next time they are open and do some digging. I was wondering about the fuel pump does it get a signal from the ecu to change its output when warm? Just couldn't see how it would run so well when cold. Plenty to get my teeth into though thanks 🙂

Cheers for your response. Not sure what lambda was saying but it runs like normal till hot, then when hot at around 3k ish it goes completely gutless like it hits a limiter and the car starts spluttering, doesn't seem like a miss as such it's like it's not getting enough fuel. Timing belt done, checked, new vvt pulley fitted as it squealed slightly on restart after first rebuild but didn't make any difference. Again not sure on idle vac, the garage is doing the work I was hoping for questions like this so I can ask the garage about it. I have a relatively good mechanical understanding but I'm no car mechanic. I'll ask about the vac when I next pop in. Are there figures it should be? Cheers

Cheers mate, I'm pretty sure they cleaned the cat but ill mention it. I know all the flows/emissions etc have been checked and are good. Feel for them I wanted to do the rebuild myself but little un taking up all my time. If I was doing it I'd have been knackered I've got nowhere near enough experience for this amount of diagnosis

Hi guys, wondering if anyone can shed any light on a problem with my gti. I had it sat on the drive for a year as it needed a rebuild. Started occasionally with no issues. I took it for a engine rebuild a few months ago. Ran fine on the way there although I was nursing it due to the engine problem (blowing oil out exhaust). It had a full rebuild, all put back together and now as per title it runs beautifully until full engine temperature is reached then it won't rev past about 3k. Its almost like its got a rev limiter. It's still with the engine rebuild shop but it's been months now and we're all pretty confused. No codes thrown up. So far it's had new :- coil pack, leads, plugs, new head, temp sensor, timing pulley, both o2 sensors, had the egr/throttle body/anything needed recalibrated. The engine has been rebuilt twice now as the shop wanted to make sure they hadn't missed anything (they fitted new head 2nd time round due to being not being 100% happy with a valve seat). I'm not sure if the car gained this problem when it sat for a year I know before I parked it up other than the oil out the back it was running like a dream never had any power or running issues (although obviously it wasn't being pushed hard). Any of you gurus got any other ideas what else to check?  Cheers. Simon 

Sorry this is in wrong topic don't know how to change it

Hi guys, wondering if anyone can shed any light on a problem with my gti. I had it sat on the drive for a year as it needed a rebuild. Started occasionally with no issues. I took it for a engine rebuild a few months ago. Ran fine on the way there although I was nursing it due to the engine problem (blowing oil out exhaust). It had a full rebuild, all put back together and now as per title it runs beautifully until full engine temperature is reached then it won't rev past about 3k. Its almost like its got a rev limiter. It's still with the engine rebuild shop but it's been months now and we're all pretty confused. No codes thrown up. So far it's had new :- coil pack, leads, plugs, new head, temp sensor, timing pulley, both o2 sensors, had the egr/throttle body/anything needed recalibrated. The engine has been rebuilt twice now as the shop wanted to make sure they hadn't missed anything (they fitted new head 2nd time round due to being not being 100% happy with a valve seat). I'm not sure if the car gained this problem when it sat for a year I know before I parked it up other than the oil out the back it was running like a dream never had any power or running issues (although obviously it wasn't being pushed hard). Any of you gurus got any other ideas what else to check? Cheers. Simon

But I do own a garage and keep it in there most of the time, always overnight 🙂 so no issues with insurance not paying out. Due to the fact its on a classic policy no no claims generated, but I have no claims on my daily so no problem. Just thought it might be good information for people with lupos as second cars and nice to have a bit of acceptance that they are becoming classics

Hi all, Just thought I'd share a bit of good news. Just managed to get the lupo gti insured on a classic policy with RH insurance. Usual classic restrictions (3k miles and garaged overnight) but the level of cover was really good and price was even better (under £200) I'm 30 and North West based. Hope this info helps 🙂

hey mate, i got an aftermarket rack off ebay last month for £37.50 delivered, i liked the vw ones but needed a rack at short notice! dont know if they have any more in stock but you can try, heres a pic of them on and a link to the one i bought http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...em=130226743532 sorry i havent got a pic without the luggage deck on it, this was another £40 off ebay

seen as i stupidly cut up my sub box, i have been lookin into the active sub as mine is pretty much on its last legs anyway! i have come across the vibe sq8 which is only a 8" and will look really smart in my boot, heres a link to it here http://www.vibeaudio.co.uk/products/sq/ anyone got or heard one???id like some advice before i spend the £100+ on it, coz i kno i could get the fli 10" enclosure for around £70 any advice would be cool thanks si