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hallsie
Original Poster
1,463 posts
90 months
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Ive been having a few minor problems with the 350i with it not revving over 3500 revs. Ive changed the old TPS for a newer one that I got from Carob, thanks mate, and made a spacer to get it to work. Ive been all through the inlet to seal any air leaks and still no joy. So, I think Ill have a look at the dizzy cap for fun, even though it was serviced weeks before I bought it. No problems there, so I go to put the cap back on and line up the locating tab on the top... ITS 180 DEGREES OUT!!! No wonder its been running like s  t. Now, I really hope I havent jinxed myself as I couldnt get it out for a run because the kids are in bed and ive only just finished playing, but by god its gonna get the thrashing of its life tomorrow!!!! Stu Sorry about the swearing in the title.
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vampire222
405 posts
19 months
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Warm it up before thrashing it though, its a small miracle it even ran ok at 180 degree out.
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JMF894
1,466 posts
25 months
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Well? Any good chap?
Jimbo
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hallsie
Original Poster
1,463 posts
90 months
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jimbo, ive gone fishing instead, will report back tomorrow.
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dixiebabes
2,530 posts
94 months
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hallsie said: jimbo, ive gone fishing instead, will report back tomorrow. Fishing now that's a propper man sport stu I bet you don't have PAS Dix muscles from hartlebrussels.
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mrzigazaga
6,661 posts
35 months
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Yeah but a real man would use a hand line...And fish for sharks...BIG ones!!...I mean..Sitting there with your rod in your hand hoping to attract something fishy!!...Last time stu went fishing he caught his finger..I suppose it could be considered a fish finger!!...  I hope you have better luck this time mate..
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hallsie
Original Poster
1,463 posts
90 months
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looks like thats a NO!
still cant get it revving over 3500 revs!
Ars3!
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RCK974X
983 posts
19 months
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I don't know much about Rovers, but have had that kind of problem on one or two different engines.
I believe the Rover dizzy has advance springs (i.e. timing not done by engine management).
So my suggestion is frozen advance wieghts.
If the dizzy springs/weights are frozen, the ignition advance won't be right at above 1500rpm (ish), and around 2500-3500 RPM seems to be the limit for engines with that problem....often the engine won't misfire either, it just stops going any faster....
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PoleDriver
20,247 posts
64 months
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RCK974X said: I don't know much about Rovers, but have had that kind of problem on one or two different engines.
I believe the Rover dizzy has advance springs (i.e. timing not done by engine management).
So my suggestion is frozen advance wieghts.
If the dizzy springs/weights are frozen, the ignition advance won't be right at above 1500rpm (ish), and around 2500-3500 RPM seems to be the limit for engines with that problem....often the engine won't misfire either, it just stops going any faster.... My god, I think you've just answered a problem I had with a MK1 Golf many. many years ago! It would perform fine up to 70MPH then not go any quicker (intermittently it would go faster). I changed all of the electrics in the ignition system, the carburettor, reground the valves etc, etc. I never checked the advance weights/springs! 
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RCK974X
983 posts
19 months
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EVEN MORE AMAZING .. is that my brother had this very problem with his .... Mk1 VW Golf !
He was baffled too, but I had a similar problem earlier with a Triumph six (2500) which had been sat for a long time on a garage floor.....(rest of story deleted for everyone's sanity).... and a good dose of the old fix-all WD40 and some fiddling around with a screwdriver (you can't get at the weights easily on the Golf dizzy...) and Bingo !!
and on a friend's buy of a Zephyr V4 also sat around for a long time (a horrid, horrid engine....)
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Danny Hoffman
1,539 posts
132 months
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Might be worth trying a new quality rotor arm, I've had a problem like this with an Intermotor one
Danny
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hallsie
Original Poster
1,463 posts
90 months
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Well
I took the top off of the dizzy, and took the plastic cover that says 'do not remove' because I can.
Couldnt see the weights, but could see the advance, the vac pipe non return valve was back to front so no advance when under load, i also gave it the technical 'whack' to free up anything in there (trained Mechanical fitter)and put it all together again.
I then took off the air flow meter (AFM) to see if I could spot anything wrong, again nothing obvious.
Put it back together and still no difference.
Decided to put it back by the garage, pulled it off the drive to move another car off, and it ran fine, even gave it some beans to make sure.
So its cured for the time being, and hopefully when i take it out tomorrow, but i need to find out what it was as an internittent fault is a pain in the arse!
Stu
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clarkmagpie
2,195 posts
65 months
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technical 'whack'
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GadgeS3C
2,001 posts
34 months
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Anyone can hit it with a hammer - it takes experience to know where and how hard 
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RCK974X
983 posts
19 months
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Technical whack aside - the centre shaft should be moveable a little (about 1/8 of a turn or so) with your fingers, and you should be able to feel the spring pressure, and a little bit of slack.
If you can't move it at all then it's possibly frozen.
The definitive way is with a timing light, which should show advance when you rev the engine....
Er....as far as I know, fuel problems tend to cause misfires both ways (rich or weak) so as it doesn't do that, I'm more inclinded to blame something in the ignition timing but that's just my guess ....Anybody else ?
what do the spark plugs look like ?
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carob
2,481 posts
81 months
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Hi Stu,
Glad you found a use for the TPS, even if it looks like you had an underlying problem. Always glad to be of help to my fellow wedgers.
Rob
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dixiebabes
2,530 posts
94 months
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Fishing Stu, Technical whack. Now if this is not a wedger what is!!!
Dix
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hallsie
Original Poster
1,463 posts
90 months
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Thanks Dix,
3 partys in 2 days have also stopped me from sorting it out..
Tomorrow will be the day!
Stu
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gromit wedge
94 posts
38 months
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Had this exact problem with mine and changed everything and it turned out to be a bit of crap partially blocking the fuel line. Mines would rev no problem when stationary but wouldn't rev when it was driving. Get the fuel line off ond cleaned. Mine had new pre and post pump filters and fuel pump but that little blockage caused me mega hassle. The fuel pressure was spot on as I had a guage fitted so don't trust that all is well if the pressure reads okay on yours.
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