MOT Time
Author
Discussion

ukbob

Original Poster:

16,277 posts

289 months

Sunday 17th October 2004
quotequote all
Paul/Mark at Austec remapped the fuel rich, to compensate for 2 injectors which need cleaning/replacing and were running lean. How likely is this to affect (fail) my emissions test on tomorrow mornings MOT?

I have a small screw in one of my rear tyres, is this likely to earn me a fail, or might I be lucky enough to get a "recommend you change that"

Finally, one of my front indicators is cracked, and is missing a piece of plastic the size and shape of a pair of nail clippers will that need replacing also?

If any of the above fail me (My MOT expiry is Tuesday) can I get something similar to an insurance covernote, which says you're legal to drive for another week... but have to get the niggles sorted before then, or is that just not something that happens with MOT's -Rob

tvrgit

8,483 posts

276 months

Sunday 17th October 2004
quotequote all
ukbob said:
Paul/Mark at Austec remapped the fuel rich, to compensate for 2 injectors which need cleaning/replacing and were running lean. How likely is this to affect (fail) my emissions test on tomorrow mornings MOT?


Pretty likely, I would guess.


then he said:
I have a small screw in one of my rear tyres, is this likely to earn me a fail, or might I be lucky enough to get a "recommend you change that"


Depends where it is - if it's in the tread it might be ok, if the sidewall or the read edge it's probably a fail


then he said:
Finally, one of my front indicators is cracked, and is missing a piece of plastic the size and shape of a pair of nail clippers will that need replacing also?


If the hole allows a white light to shine through, then it probably will have to be replaced. Front indicator is 1986 Leyland Sherpa van (Part No BA1349 IIRC)

then he said:
If any of the above fail me (My MOT expiry is Tuesday) can I get something similar to an insurance covernote, which says you're legal to drive for another week... but have to get the niggles sorted before then, or is that just not something that happens with MOT's -Rob

If it fails, then you can't use it till it's fixed (unless you have time left on the existing MOT or you are taking it to an MOT appointment). Simple.

>> Edited by tvrgit on Sunday 17th October 22:20

ukbob

Original Poster:

16,277 posts

289 months

Sunday 17th October 2004
quotequote all
Thanks for the replies - I should be ok then, just have to wait and see re: the emissions.

I really hope I dont have to get the injectors cleaned, think thats £250 + £120 rolling road time plus vat

Have to wait and see I guess.

Tripps

5,814 posts

296 months

Sunday 17th October 2004
quotequote all
ukbob said:
Thanks for the replies - I should be ok then, just have to wait and see re: the emissions.

I really hope I dont have to get the injectors cleaned, think thats £250 + £120 rolling road time plus vat

Have to wait and see I guess.
I'm no expert but that seems a lot for injector cleaning and I can't see why a rolling road session would be needed, unless they need to reset the ECU back to where it was beforehand...

Good luck for the MOT though.

pies

13,116 posts

280 months

Sunday 17th October 2004
quotequote all
Tripps said:

ukbob said:
Thanks for the replies - I should be ok then, just have to wait and see re: the emissions.

I really hope I dont have to get the injectors cleaned, think thats £250 + £120 rolling road time plus vat

Have to wait and see I guess.

I'm no expert but that seems a lot for injector cleaning and I can't see why a rolling road session would be needed, unless they need to reset the ECU back to where it was beforehand...

Good luck for the MOT though.


That includes removal and refitting

ukbob

Original Poster:

16,277 posts

289 months

Sunday 17th October 2004
quotequote all
I paid for a RR session, and Austec didnt tell me until after the session that the injectors were shagged. I remember paul saying "we are 70% there" and that he could easily find more power and would only need 1 more hour on the road... been put£ing it off. The injectors do seem pricy, but it has to be done at some point. I would try some cleaning myself, but Paul said 2 injectors were in such a bad way, they might need replacing, so just going to hand over, hope for the best, and also hope I dont have to hand over this month.

sean737

40 posts

261 months

Monday 18th October 2004
quotequote all
Injector cleaning is a specialist job. It is done ultrasonically and then the spray pattern is checked on a rig. Usually costs about £15-£20 per injector if you do the removal and refitting and there should be a place locally to most of us!

With regards to the MOT emmissions check I would hazzard a guess that it would pass (perhaps we should start a wager)? The emmissions level is bassed on the age of the car. My previous car, a C-reg BMW only had to have a visual inspection!! Most S series are of the era when alot of cars were still running on carbs. Unless the state of your injectors is very bad it should pass. I would still go about getting them cleaned as a matter of course as the improvement in ecconomy would cover the cost quite quickly. Also all that extra fuel washing the oil away will accellerate bore wear and that thought will stop you sleeping at night!!!

z_chromozone

1,436 posts

273 months

Monday 18th October 2004
quotequote all
Hi Bob,

I doubt very much if the MOT station will notice the screw in your tyre, however for the sake of a puncture repair I would get it removed anyway for peace of mind.

If you are tempted by saving money and removing the injectors your self to have them cleaned, getting them out is fairly easy. Getting them back and their O-rings aligned properly can be quite a challenge, but should not be beyond a man with patience. Just check for leaks by priming the pump before you start up. Also, mark the injectors they look like they all have wires that allow them to only be fitted one way, but some will interchange


Z

ukbob

Original Poster:

16,277 posts

289 months

Monday 18th October 2004
quotequote all
Great News! I failed on two counts - But neither of them were any the aforementioned worries

An 80p bulb (was so happy to hear the injectors/emissions were ok, I forgot to ask which bulb) and the windscreen washer jet nozzle - been meaning to reaffix it after knocking it off whilst cleaning.

I'll need to get another rear tyre at some point, the screw goes into the tyre, between the tread, and cant be repaired. Not leaking, its fine for now. When I do get a new rear tyre, is it best to replace both back ones at the same time? Im wondering how having two differnt rear tyres might affect the apportioning of grip at the back, under heavy acceleration, in the wet, etc.

Im going to leave the tyres, get some more use out of it till they're both more worn. Should the tyre go, is the plate upon which to jack up the S easy enough to find?

z_chromozone

1,436 posts

273 months

Tuesday 19th October 2004
quotequote all
Hi Bob,

There are no specific plates on the S to jack from. If you are jacking at the rear then a good place to start would be beneath the large rear cross member where the mounting point for the rear coil spring is. A bit of wood and a rag should spread the load over the round section. I would not jack the outrigger in any position, and the rather tempting looking square sections of the fuel tank cradle at the back are not up to the job.

Z

tvrgit

8,483 posts

276 months

Tuesday 19th October 2004
quotequote all
And yes, I would replace both tyres at the same time - the idea of having two different tyres (or even the same brand with vastly different thread depths) just doesn't appeal to me - I prefer to travel through the scenery, not vice versa.

ukbob

Original Poster:

16,277 posts

289 months

Tuesday 19th October 2004
quotequote all
tvrgit said:
And yes, I would replace both tyres at the same time - the idea of having two different tyres (or even the same brand with vastly different thread depths) just doesn't appeal to me - I prefer to travel through the scenery, not vice versa.
I agree - dont like the idea of not replacing both tyres at the same time.

WildfireS3

9,919 posts

276 months

Tuesday 19th October 2004
quotequote all
I can't belive they failed you for thoes things. Usually I have a chat to the bloke and if it's minor, ie, washer jet or a bulb, he just fixes it there and then passes me.

Mind you I was failed on a brake pedal rubber on my mini but one really pedantic tester. He wouldn't believe me that they didn't have one. So I had to stick one on.

ukbob

Original Poster:

16,277 posts

289 months

Tuesday 19th October 2004
quotequote all
I know, some people

The worst part was I got charged £4.40 for the washer jet, and £37.00 labour for a washer jet which worked perfectly, but was broken off, and could have been glued back on. Other than that, the only profit would have been on the 80p bulb and 5 minutes labour.

I even explained to the guy where the jet was (in the car) and how to fix it, but no... he took the piss. Car had to be sent back again to the MOT place, get approved, get sent back etc. Hes almost as bad as your pedal unbeliever.

WildfireS3

9,919 posts

276 months

Wednesday 20th October 2004
quotequote all
But at least with the peadal I wasn't charged to fix it, I was allowed to do it myself. I hate it when people take the pi$$.

Tripps

5,814 posts

296 months

Wednesday 20th October 2004
quotequote all
sean737 said:
Injector cleaning is a specialist job. It is done ultrasonically and then the spray pattern is checked on a rig. Usually costs about £15-£20 per injector if you do the removal and refitting and there should be a place locally to most of us!
Sean,

J500 is certainly in good hands, never knew injectors were that much effort, I was thinking of a quick extraction, clean with petrol etc. and replace - guess that's why I don't service my cars

Glad all is sorted Bob, hope to catch up soon.