missfire and wheel bearing

[matt_elan]

ok, problem 1.
got in my s2 this am after not usin it yesterday, and soon noticed that it was misfirin quite badly under boost. my 1st thought was as it got rained on a lot yest and a lot of moisture in air somethin had got damp and it would dry. wen i got 2 work i cleaned and dryed the leads and connections. on the way home and......... still the same.got the car from will in summer and im sure he said it had a new coil so shouldnt be that? any ideas appreciated.

problem 2.
gettin a horrid whining kind of sound from the front ns wheel. gets louder as i go faster. assuming its the wheel bearing. one problem tho..... my mechanic dropped the gearbox 2 replce ring gear and clutch and in doin so had gr8 trouble in removin the driveshaft from the hub on the nearside. he tryed allsorts but gave up and managed to get it out from the gearbox end. but if im 2 replace the wheel bearing then it needs to come off. what i dont want 2 do is end up replacing everything! is it common for the shaft 2 become stuck in the hub? i thought that once hub nut is removed and all the various joints it should be fairly easy? so i really need some ideas here guys/
regards
matt

[Dave M]

On problem #1, first check all your spark plugs and the lead connections. It could be that plug gap is off, one is bad, or you merely had a bad connection. Gap should be ~.035" and consistent among the plugs. Does the whole car stutter (possibly more than one cylinder), or is it a misfire with a slight performance decrease (maybe only one cylinder)? Also do a search on "misfire". It seems there have been a number of folks who have asked about this in the past with a number of helpful suggestions.

For #2, it sounds like it could be the bearing, but the mechanic's work concerns me. Could he not get the shaft out of the hub once the hub nut was removed? Or could he not get the hub nut removed? My experience is the hub nut can be a @#$%, but once off, the shaft came out right away. You should have the axle removed to first see if the bearing is in the right position and that the mechanic didn't bung it up trying to remove the shaft end.

[Candles]

If you remove the whole axle and hub carrier, you can pop the whole thing into a bearing press and press the axle out of the bearing, before pressing the bearing out of the hub carrier. I had to do it this way around on mine as the axle wouldn't come out in situ.

Candles.

[WillB]

Hi Matt, yep, replaced one of the coils. It might be the other one, but I would have thought the damp weather more like to be the cause or a faulty plug/lead as mentioned.

The coils are about £34+vat from American Autoparts (see recent thread)

[Kjeld]

This post is timely. I have just struggled through engine timing problems and in the last week, a sudden and pronounced grinding sound from a front wheel. The first half was simple once ID'd; a blown off vaccum line.

But the bearing story is the same. I took the car to my mechanic, who told me he could not remove the bearing. Or to put in another way, he did not have the courage to "whack it".

So what is the deal? Any tips or tricks I can offer my mechanic (who laughs and shakes his head whenever I pull in)?

Lastly, so what about those Elise's anyway? Not as pretty in my view, but everything else sounds right. Might be time.

[Dave M]

Lastly, so what about those Elise's anyway? Not as pretty in my view, but everything else sounds right. Might be time.

It's the devil in disguise... In my case it is a black Exige.

[gmacz]

Just replaced my own wheel bearing.Used the "whack it " method.I put a mash(square end hammer) on the bearing and used another hammer to hit the mash hammer.The bearing popped out quite easily.Used the old bearing to push in the new bearing , using the whack it method again.All done quickly and pretty easily.If I had a hydraulic press, I would have used it. Yours Gmacz

[Kjeld]

Had the bearing mounted today along with installing the new CV boots on the axel shaft. $300 in labor. More than I expected.

Should'ah whacked it......

[Kjeld]

......