Happy but a couple of problems, help needed
Happy but a couple of problems, help needed
Author
Discussion

Steve H

Original Poster:

1,172 posts

253 months

Wednesday 1st August 2012
quotequote all
As per previous post S1 is now back on the road after 2 year SORN and had a great blast out in her today...I am still smiling and I have been back an hour! The drive has thrown up a couple of problems and I would be really grateful for any help/advice

1) Oil pressure - needle on gauge does not move until revs get to above 2000 and then settles correctly (no flutter). Could this be gauge, sender, oil change needed???

2) I have a misfire! other than checking plugs, dizzy, points etc any other tips. I could have manifold leak or air leak I suppose??

My mechanical knowledge is very limited and so before I go to the garage I would at least like to know what I am talking about!

In spite of the above.............it is good to have her back!!!

Steve

Edited by Steve H on Wednesday 1st August 16:56

phillpot

17,510 posts

212 months

Wednesday 1st August 2012
quotequote all


1. quite possibly the sender unit?

2. could be a "million" things, but won't be the points! try pulling each plug lead off (one at a time) see if any one cylinder makes a difference/ no difference?


TurboTony

908 posts

200 months

Wednesday 1st August 2012
quotequote all
phillpot said:
2. could be a "million" things, but won't be the points! try pulling each plug lead off (one at a time) see if any one cylinder makes a difference/ no difference?
But wear thick leather gloves or you will find out the hard way which cyliner is not firing.

Is the misfire only when driving - eg. engine under load?

Cheers
Tony

Steve H

Original Poster:

1,172 posts

253 months

Wednesday 1st August 2012
quotequote all
Hi Tony, after a while she began to cut out as well, but yes the misfire was certainly there at lowish revs.... when I gave it the beans it wasnt noticable. She was also labouring in traffice when accelarator pressed (sort of felt like she was holding back?)

Sorry, crap at describing!

Steve

Smadmax

20 posts

185 months

Thursday 2nd August 2012
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morning Steve.
have you checked the inside of your dizzy cap ??? the contacts can have a build-up of crud,also check for signs of arcing (copper coloured very fine lines). Could also be HT leads breaking down. As your P&J has been sitting for so long how about a new set of plugs and a new fuel filter. you could also try a fuel system cleaner just add to your fuel. It cleans while you drive.


Charlie

NeilS3

331 posts

266 months

Thursday 2nd August 2012
quotequote all
My S3 had been standing some while before I got it and had a small misfire or 'stutter' when pulling, Put some injection cleaner in and solved the problem. Worth a go!

Scoobimax

1,892 posts

230 months

Thursday 2nd August 2012
quotequote all
phillpot said:
1. quite possibly the sender unit?
1st place i'd check tbh. cheap swap out.

phillpot said:
2. could be a "million" things, but won't be the points! try pulling each plug lead off (one at a time) see if any one cylinder makes a difference/ no difference?
similar issue on mine was a dodgey connector to the throttle pot - worth a wiggle to see if it fixes things as it did mine.

And there ends my knowledge :-/

Steve H

Original Poster:

1,172 posts

253 months

Thursday 2nd August 2012
quotequote all
Update: Checked all plugs and leads and they seem fine. Have found that the sensor plate cover is split and is not held on by a jubilee clip, also there is a threaded rubber tube on this cover which has an old 4" bolt in it. Now I am sure that this needs to be air tight as a vacuum is needed and I am also sure that there should be a proper bolt that adjusts?

Does anyone know where I can purchase a new one?

Cheers
Steve

phillpot

17,510 posts

212 months

Thursday 2nd August 2012
quotequote all
confused


think a picture might help ? wink

Steve H

Original Poster:

1,172 posts

253 months

Thursday 2nd August 2012
quotequote all
Not sure how to do this..... the pic is 2.26mb and I think the max on here is 2mb...not sure how to resize

phillpot

17,510 posts

212 months

Thursday 2nd August 2012
quotequote all


I use Windows Photo gallery to re-size and edit, pretty easy to use which is handy coz I sure ain't a computer expert!

me + type =headache

Steve H

Original Poster:

1,172 posts

253 months

Thursday 2nd August 2012
quotequote all


Not my engine, stole this pic from google. Not sure if this will come out right... basically the part that seems faulty is the big rubber cover on the end of the large plastic tube (sitting next to the inj system I think). If you can see it, there is a bolt sticking out of it around the 4pm mark on the cover. What the hell is this? and Where would I be able to get another from?

Steve

God I should not be let near an engine!!!!!

phillpot

17,510 posts

212 months

Thursday 2nd August 2012
quotequote all

A ha!

Didn't realise yours is a 2.8, never been near one, sorry can't help !

Steve H

Original Poster:

1,172 posts

253 months

Thursday 2nd August 2012
quotequote all
No Problem Phillpot, thanks for taking the time to reply

Steve

Edited by Steve H on Thursday 2nd August 17:11

Donnysoutherner

301 posts

201 months

Thursday 2nd August 2012
quotequote all
http://i1264.photobucket.com/albums/jj498/donnysou...

Click for link to picture of mine. Not a bolt but a blanking plate only. Definitely should be airtight, and definitiely should be held in place by a big jubilee clip. Might be the cause.

Steve H

Original Poster:

1,172 posts

253 months

Thursday 2nd August 2012
quotequote all
Thats the part Donny, thanks very much! Do you know what it is called and where I could possibly get another? Also, where your blanking plate is mine has a dirty great rusty bolt pushed into it but the rubber is threaded, I know that yours has a blanking plate but do you know what is usually there (as it is threaded)?

steve

glenrobbo

40,485 posts

179 months

Thursday 2nd August 2012
quotequote all
Hi Steve,

1) I bought an oil press sender off fleabay a few months back, it was under £15 inc post & packing & quite easy to fit, although you need to make up an earth wire to the nearby chassis earth point. It works a treat.
If you run a search on eBay you should find it, or Google Hose Fittings UK.

"Universal 1/8 NPT Male Oil Pressure Sender/ Sensor".
Next day delivery as well.
There is a thread on this forum about 9 May 2012 ish.

2) Not sure what you mean by 4" bolt, mine just has a plastic blanking plug, don't think there's anything adjustable there.
If that casing is split, it could cause running probs, but I would check engine electrical plugs/connectors for signs of corrosion & give em a good ole spray of WD40. Also check your dizzy cap contacts & rotor arm for crud, as per previous advice.

Just a thought, how much petrol in the tank? You could put a couple of gallons of (97 ron) Optimax in & see if it makes a difference.

Hope you get it sorted, it's much more fun to be driving it than poking about under the bonnet!

Edited by glenrobbo on Thursday 2nd August 23:52

Steve H

Original Poster:

1,172 posts

253 months

Friday 3rd August 2012
quotequote all
Thanks for the reply elnrobbo and the info on the sensor. Re the bad running I am really confident that it is the cover that needs replacing but I am at a loss as to where to buy a replacement. where yours has a blanking plate mine has a bolt and so I could get a rubber blank and sort this but the "shaft" of this section is split in two...is there an adhesive I can get to sort this (temporarily) at least I could still use her until a replacement could be found

S2Mike

3,065 posts

179 months

Friday 3rd August 2012
quotequote all
Just a thought , would a Ford dealer not be able to help?
Sorry to stick my nose in but a competetant Parts Bloke could be a possibility, and so much quicker to nip down there than waiting for fleabay to deliver. More time to cruise!

Steve H

Original Poster:

1,172 posts

253 months

Wednesday 8th August 2012
quotequote all
Update, managed to fix mine with some sealant and a jubilee clip and also put a large jubilee clip on the actual part to make it airtight and the car now runs really well.

Still not sure what the part is or what it does but at least I can enjoy the car while I do my research.

Thanks for all your help
Steve