tome30
Posted a lot
Posts: 1,001
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Jan 13, 2012 19:36:22 GMT
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Just recently my car has been idling funny, just a little nothing too bad, just whereas it usually ticks over at 1k, it dips and rises, just enough to change the note of the exhaust and wobble the car. I don't want to start ripping the engine apart... What would you suggest I check first (what is it 'usually' )? Plugs?  |
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🇿🇼Kingludba🇬🇧
Part of things
If in doubt... flat out !
Posts: 975
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Jan 13, 2012 21:58:24 GMT
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What car is it? an e30? Normally a split or leak in the intake boot causes this, mines doing that now, got one but haven`t fitted it yet.
Hope this helps
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`99 BMW 528i auto - current `01 Merc C320 - Gone `01 Forester S-Turbo - Sold `89 BMW 320i Convertible - Sold(shoulda kept it  ) `88 Toyota MR2 T-Bar - Sold `89 BMW 325i touring - Sold `89 BMW 535i - Let her go too early `85 BMW 320i 2 door - Rust = character `00 Subaru Impreza Turbo wagon - Sold (engine failure) `93 BMW 325i - Sold |
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murran
Part of things
Posts: 610
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Jan 13, 2012 23:06:16 GMT
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air leaks first and foremost. i take it its an e30? m20?
does it make any difference removing the oil cap with it idling? if it dosent you already had an air leak before you took the cap off (inducing one). check everything with a rubber hose. then the breather tube under the inlet manifold. theres an o ring at the top and bottom any oil leaks here?
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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E30 isn't Jetronic isn't it? Idle Control Valve need cleaning?
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tome30
Posted a lot
Posts: 1,001
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Jan 14, 2012 11:24:12 GMT
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Sorry  it's a mk2 Golf. Haven't changed my username since I had the E30. It's a 1.8 carb. |
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Jan 14, 2012 11:32:06 GMT
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Split mounting rubber on the base of the carb then. Try wobbling the air filter with the engine running.
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To get a standard A40 this low, you'd have to dig a hole to put it in |
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murran
Part of things
Posts: 610
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Jan 14, 2012 14:27:44 GMT
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base gasket is a good place to start does the carb seem wobbly on the manifold?
has it still got the pierberg 2e carb or has someone already replaced it with a weber conversion?
the systems on the pierberg are quite fussy. its not a bad carb but not many mechanics understand how it all works and quite often it gets replaced by a weber.
your lumpy idle is it hot or cold? how fast does it tickover hot and cold? does it seem to gas up while warming up?
theres three main parts of the auto choke; the bi metal spring, choke pull down unit and the wax stat.
if one of these isnt working it wont be running right.
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tome30
Posted a lot
Posts: 1,001
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Thanks for the replys, however...
I'm an idiot, removed a vacuum hose to remove and clean air filter..never re-attached it! Sorry for wasting time.
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bstardchild
Club Retro Rides Member
Posts: 14,971
Club RR Member Number: 71
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Jan 16, 2012 23:04:45 GMT
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Thanks for the replys, however... I'm an idiot, removed a vacuum hose to remove and clean air filter..never re-attached it! Sorry for wasting time. And that's the air leak  Well done for finding it  |
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)
it's a mk2 Golf. Haven't changed my username since I had the E30.
