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Lancia Motor Club > Model Technical and Interest > Dedra, Thema and Delta (2nd series) > Thema Tick Over
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Author Topic: Thema Tick Over  (Read 2905 times)
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Dilambdaman
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Posts: 1377
« on: 10 May, 2010, 10:28:38 PM »
Thema S3 16 Valve Turbo.

The tick over is suddenly doing strange things. It has risen to 1500rpm and then surges rhythmically to 2000rpm and back to 1500. Just as if one is blipping the throttle.

Where should I be looking?

Robin.
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Robin Lacey 3222

1932 Dilambda
1992 Y10 GTie
2012 Delta Mk3
fay66
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Posts: 6191
« Reply #1 on: 11 May, 2010, 01:40:30 AM »
Hi Robin,
Remove the intake hose next to the throttle switch, then give the butterfly valve a  good clean, both sides with carb cleaner, the deposits around the spindle and the valve can cause this problem, I've had it happen on Dedra and Thema, most disconcerting!

Brian
8227 Cool
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Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
2006 Renault Megane 1 5 Dci Sports Tourer
Dedra Technical Adviser
Dilambdaman
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Posts: 1377
« Reply #2 on: 11 May, 2010, 07:38:13 AM »
Thanks Brian I'll give that a go.

Robin.
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Robin Lacey 3222

1932 Dilambda
1992 Y10 GTie
2012 Delta Mk3
rogerelias
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MY 1600HF IN HEARTBEAT GARAGE
« Reply #3 on: 11 May, 2010, 12:31:14 PM »
Where should I be looking?
 
  Auto trader Cheesy Cheesy Cheesy
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FULVIA 1600HF LUSSO
1958 VELOCETTE MAC
Triumph Bonneville t120v 1972
1968 MGC ROADSTER
1958 Series 2 Appia berlina
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