Starting on choke

Big lumps of metals and spanners. Including servicing and fluids.

Moderators: User administrators, Moderators

Post Reply
pi quattro
Registered user
Posts: 129
Joined: 20 Jan 2012, 16:38
80-90 Mem No: 10730
Location: Ayrshire Scotland

Starting on choke

Post by pi quattro »

When I start my van (1.9 petrol pierburg 2e3) it has started to rev so high I have to turn it off! It revs very very high.

Recently rebuilt carb a few months ago with a brickwerks kit and it has ran fabulous since, but I noticed that the revs were staying high when I take my foot off the accelerator a few weeks ago.

I have always pumped the pedal once or twice slowly, but today from cold it started ok with just a little rev. I was trying to avoid the redline revving!

1) should I be pressing the pedal to "switch on" the automatic choke? Not sure where I learned this but I am sure it's the right method.

2) can anyone suggest if there is anything that needs oiled or greased on the carb. It occurred to me that what was previously very oily went back together almost squeaky clean...maybe a spindle or spring is sticking?

(once engine is up to temp, all is good btw)
1985 autosleeper high top. 1.9 petrol

User avatar
CovKid
Trader
Posts: 8411
Joined: 30 Apr 2006, 13:19
80-90 Mem No: 3529
Location: Ralph - Coventry (Retired)
Contact:

Re: Starting on choke

Post by CovKid »

Sounds like the accelerator cable isn't returning to its stop properly.
Roller paint your camper at home: http://roller.epizy.com/55554/" onclick="window.open(this.href);return false; for MP4 download.

pi quattro
Registered user
Posts: 129
Joined: 20 Jan 2012, 16:38
80-90 Mem No: 10730
Location: Ayrshire Scotland

Re: Starting on choke

Post by pi quattro »

Yeah I thought about that, but totally goes away when warmed up. That's why I assumed it was a choke issue?
1985 autosleeper high top. 1.9 petrol

User avatar
kevtherev
Registered user
Posts: 18832
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: Starting on choke

Post by kevtherev »

put some lube on the fast idle mechanism.
AGG 2.0L 8V. (Golf GTi MkIII)

pi quattro
Registered user
Posts: 129
Joined: 20 Jan 2012, 16:38
80-90 Mem No: 10730
Location: Ayrshire Scotland

Re: Starting on choke

Post by pi quattro »

kevtherev wrote:put some lube on the fast idle mechanism.

Cheers Kev, will do, what does it look like?

As I side question, what part if the carb is the "choke pull down unit" does that refer to the whole choke mechanism or part of it?
1985 autosleeper high top. 1.9 petrol

pi quattro
Registered user
Posts: 129
Joined: 20 Jan 2012, 16:38
80-90 Mem No: 10730
Location: Ayrshire Scotland

Re: Starting on choke

Post by pi quattro »

I have 3 in one, wd40 and WD silicone spray, what would be the preferred lube?
1985 autosleeper high top. 1.9 petrol

User avatar
kevtherev
Registered user
Posts: 18832
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: Starting on choke

Post by kevtherev »

search my posts or itchyfeet using "fast idle"
plenty there
AGG 2.0L 8V. (Golf GTi MkIII)

User avatar
kevtherev
Registered user
Posts: 18832
Joined: 23 Oct 2005, 20:13
80-90 Mem No: 2264
Location: Country estate Wolverhampton Actually

Re: Starting on choke

Post by kevtherev »

3 in 1
AGG 2.0L 8V. (Golf GTi MkIII)

pi quattro
Registered user
Posts: 129
Joined: 20 Jan 2012, 16:38
80-90 Mem No: 10730
Location: Ayrshire Scotland

Re: Starting on choke

Post by pi quattro »

Hi guys this hasn't got better or gone away :cry:

I have lubricated everything I can, all springs and parts that appear to move. I did notice that the lever at the bottom of the accelerator pump diagram (11 on the wiki diagram) returned slowly after the bit that pushes the lever returns (fast idle mechanism?)

It has got steadily worse and feels like a sticking accelerator cable, but I have ruled that out. The pedal springs straight back when I let go if it. Everything seems to be moving freely at the other end of the cable.

Any suggestions?
1985 autosleeper high top. 1.9 petrol

Post Reply