base190380

Hi guys heres the thing. I fitted my fully rebuilt fiesta rs turbo engine into my mk2 orion in june and it still aint going right yet. Probs are backfiring from exhaust as tho its rich, and a rattle under load and accelrating. Done tons of work stripping it and even sent head away for full recon to no avail. What im looking for now is a fresh pair of eyes as i am now out of ideas. Anyone live around clydebank / glasgow area in scotland that loves, and knows a bit about these engines? If so please get in touch. Alternativley does anyone know any companies that deal with fords etc only cause im not wanting to dump it into a small garage or dealer and get ripped off! Thanks

JimmyBoy

iTrader: (1)

id imagine ava would be a good place to drop it off at.

pugo

sounds like its too lean not to rich....is the noise your hearing detonation?

djmillsy

id say that would be a bad idea

base190380

hi if its running lean then would it not be down on power? pulls really well and just backfires when letting off accelrator in gear going downhill. where is the company above and does anyone have details for it thanks

djmillsy

there near glasgow airport mate you either love them or hate i will never use them id rather take mine down to england but thats my opinion

heres there site mate

www.avaturbo.com

base190380

cheers for the info thanks. whats so bad with them have any of you had bad experiences?

djmillsy

its the sane with any tuner mate theres god and bad stories i feel therre more interested in money these days there were the best at one point. i know of a few folk that have spent thousands told things were insured if it went wrong went back and were fucked off its up to you mate

pugo

nope they always run extremely lively when they are lean........hence you always here.....it was going quicker than its ever gone, then it melted

also you never said in your first post it was when you throttled off ???
to be fair i would go get it set up properly i.e cam ignition, fuelling etc

i spent a fortnight under and over my S1, asked hundreds of questions it was only through perceverence that i found a small hairline crack in the underside of my metering unit......however i will still get the on boost fuelling checked on it... proffesionally

base190380

hi again, yes it does not backfire when i rev it in nuetral, only when im driving at say 40mph in gear and let off the throttle so that the engine is braking, it then pops loudly and backfires. Also a bit burbly on idle form exhaust. drives great tho. would running lean possibly make a rattle under load from valves then? All your help much appreciate. Also wot would a full tune up and fuelling cost approx, is it expensive?

pugo

are you sure its the valves rattling or could it be pre-ignition or detonation ?

as both sound top endy, and both sound a little like dieselling when under load

base190380

Is it possible that detonation and preignition noises would be apperent from the moment the car fires up or would this normally not only show once the car is warming up?
mines making rattles from cold to warm from top end im sure, also noticed that when idleing and slowly increase the revs to approx 3k it start gong burbley from the exhaust and then backfires when letting the throttle off again, seems to be rough!

pugo

its probably valve train then if it does it when idling........you said in your original post it was under load and accelerating ????????

base190380

hi guys thanks for your help. i have boked it into ava at 11 am tommorow to get the basics set up as im still in the running in period, so dont want it rolling roaded yet. no rattle agt idle just when accelerating from idle up the rev range t 3500rpm ish and under load
hoping the noise would be detonation if running lean. would this also show even when engine is cold too?