Hi Guys
I have a problem with my 2007 golf mk1 1.8 idling unevenly.
I set the timing and it will idle on TDC for a few sec's and then drop down a few degrees only to pick up over TDC again and so on.
What could be the issue?
Could it be the earth on the dizzy module? ( This is advise I just got from a rando)
If not can you guide me in the right direction to start fault finding?
Let me know if you need any more information.
mk1 1.8 Idling hunting?
- PapaJo
- Brigadier
- Posts: 6984
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- Car Model: '16 7R, '86 Caddy AUM 20VT
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Re: mk1 1.8 Idling hunting?
More info needed.... is this carb or FI? 2007 is velo spec dash and was motor changed at some stage?
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- Enlisted
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- Registered for: 5 years 9 months
Re: mk1 1.8 Idling hunting?
Yes it is carb. And I did change the motor from the original 1.4 to an 1.8. It has the newer dash without all the silver trim.
- Sean Trollope
- Cadet
- Posts: 264
- Registered for: 6 years 5 months
- Car Make: VW. Hyundai.
- Car Model: Citi golf. Hyundai i10
Re: mk1 1.8 Idling hunting?
Check that the vacuum advance diagrams and pipes are all still working and are not cracked.
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Sent from my SM-G570F using Tapatalk
- PapaJo
- Brigadier
- Posts: 6984
- Registered for: 13 years 11 months
- Car Make: VW's
- Car Model: '16 7R, '86 Caddy AUM 20VT
- Membership No: missing
- Location: Meyerton or Offshore Guyana.
Re: mk1 1.8 Idling hunting?
Check for vacuum leaks on intake system and condition of rubber between carb and intake manifold.
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- Enlisted
- Posts: 3
- Registered for: 5 years 9 months
Re: mk1 1.8 Idling hunting?
I know that I replaced the entire flange and gasket on the carb recently but I will check for leaks as you recommended and give feedback as soon as I can.
Can you make any suggestions on what I need to change on my carb (if necessary) considering I moved the carb straight from the old 1.4 motor to the 'new' 1.8.?
Can you make any suggestions on what I need to change on my carb (if necessary) considering I moved the carb straight from the old 1.4 motor to the 'new' 1.8.?
- PapaJo
- Brigadier
- Posts: 6984
- Registered for: 13 years 11 months
- Car Make: VW's
- Car Model: '16 7R, '86 Caddy AUM 20VT
- Membership No: missing
- Location: Meyerton or Offshore Guyana.
Re: mk1 1.8 Idling hunting?
Yo need to check jet sizes and change for 1800.
- panic-mechanic
- Panic's Place
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- Location: Benoni, putfontein.
Re: mk1 1.8 Idling hunting?
Timing should not be set to tdc anyway. It should be set to 6 degrees advanced. Explain your method of checking. Ie with a light that has an advance feature or what do you have the timing set to. I am assuming you are talking about ignition timing either way.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.