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7th October 2023, 17:31 | #21 |
This is my second home
MG ZT CDTi Join Date: Jan 2014
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It is not gloss primer .............. it is duct tape silver! |
7th October 2023, 19:02 | #22 |
I really should get out more.......
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Your car probably has a completely different throttle body to my TF, but it suffered from a similar problem, and I tried all the recommended fixes to no avail.
Then somebody here (Trikey maybe?) said there was a plastic part in the TB (I think) which swole up with age, and stuck. There was a repair kit available from Rimmers, but I haven't got round to it yet
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Past cars: MGB GT; Escort 1300 Sport; Vauxhall VX4/90; Marina Coupe TC; Celica ST (1972); Montego Turbo; Astra GTE 16V; Astra GSI 16V; Golf GTI 16V (Mk II); Sierra XR4x4 Estate; BMW 325i (E30); BMW M3 3.0; BMW M3 3.2 Evo. Left some of the more embarrassing ones out. And about 30 motorbikes. |
7th October 2023, 19:19 | #23 |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Thanks Alan for your link to the "winter gremlins" thread. I have read through all of it and of course icing of the throttle body isn't a consideration in mid twenties October temperatures!
The other subject discussed is the blocked crankcase breather pinhole in the cam covers. I have experienced this and posted advice on it many times. It noticeably reduced my engine's performance but in my case it didn't cause excessive engine speed when the throttle is closed. Thanks for your response Alan. Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
7th October 2023, 19:32 | #24 | |
Doesn't do things by halves
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Quote:
However, thanks for putting forward your thoughts. All ideas are welcome as I hope that one day, success will follow! Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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10th October 2023, 18:46 | #25 | |
Doesn't do things by halves
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The fault remains. Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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10th October 2023, 19:55 | #26 | |
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For the price of a new one and 20 mins, I'd change it anyway. Sent from my SM-G780G using Tapatalk
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Lest we forget..
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12th October 2023, 09:56 | #27 | |
Doesn't do things by halves
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Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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12th October 2023, 10:13 | #28 |
Doesn't do things by halves
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Two relevant symptoms
I'm drawing a blank with this so here are three facts. Can anyone make any sense of them?
I'll be interested in any thinking which could explain these three things. Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 12th October 2023 at 10:16.. |
12th October 2023, 15:02 | #29 |
Gets stuck in
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Going back to when I had my engine racing earlier this year:-
The throttle cable from the pedal is attached to a grooved cam on the throttle body. When the pedal is pressed, the cam rotates, turning the shaft which moves the butterfly round.. At an easy glance it is possible to assume this is all that happens, but a closer examination shows a 2nd smaller cam (& butterfly) below/behind the 1st, when viewed from the normal position. This 2nd one was sticking on mime. May or may not be your problem? |
12th October 2023, 16:22 | #30 | |
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Quote:
The air supply keeping my engine running at high revs is entering through the idle control valve not the throttle butterfly. Simon
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