| [ Total Views: 729 | Total Replies: 20 | Thread Id: 47960 ] |
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 azz
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| posted on January 15th, 2006 at 08:12 AM |
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2L Kombi needs help
I posted this in another thread but now its worthy of its own.
The kombi was running on and skipping a bit so I took it for a service. My normal mechanic was still on holidays so I took it to another trusted
mechanic who gave it a half service but advised I get the carbi's checked/overhauled.
On the advice of the carbi shop I agreed to a $400 twin carbi overhaul.
Since then I have had problems.
Loads of stalling, lots of flooding etc
The most recent is it starts fine, autochoke comes on, I can drive it and it will idle in gear ok (its an auto) but when I tak eit for a run on the
freeway it will stall when I slow down and wait at lights. It will not start for 10-15 miinutes and then its fine again
Any suggestions?
Please call if its easier and I will call you back
0438006704
Its urgent because I dont want to waste anymore money on this that dont fix the problem
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azz
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| posted on January 15th, 2006 at 12:47 PM |
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What no one has ANY ideas?
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 helbus
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| posted on January 15th, 2006 at 01:26 PM |
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Only just woke up sorry. I sleep untill 1 on a Sunday. No kids you see 
I say this quite often, and I will say it again. Check the distributor as I went down this same path on out twin carb 1800. I got the carbies done at
a cost of $340 a few years ago, and not long after it was stalling before that the idle was high and low, not consistent. I was reccommended to get
the carbies done by a mechanic also. They may have needed doing anyway, but they were not the main problem.
In the end it was a worn baseplate in the distrubutor. It was allowing the points to behave in an inconsistent way and when the dizzy got hot it would
close up the points gap, and not start for a while.
It would be worth checking the settings on the auto chokes too.
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azz
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| posted on January 15th, 2006 at 01:39 PM |
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Thanks HellBus
Thats sounds like we have identical problems
I will let the Carbi mechanic know tomorrow about the baseplate in the distributor.
I feel like I have been ripped off fairly significantly by this guy/shop but what can I do he still has to work on the engine as it is worse now than
when I took it to him...
ps I have a 1.5 year old son so I was up at 05.15 
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azz
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| posted on January 15th, 2006 at 01:40 PM |
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Could it be something to do with the coil?
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helbus
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| posted on January 15th, 2006 at 01:50 PM |
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Not very likely, but if you have another 12v Bosch coil around, even one from an old Holden, you can try it and see the difference. It is not worth
buying a new one just to find out. It will only take a few minutes to get hold of one that works and swap it for a while.
I eliminated any carby, distributor or idling problems when I went Subaru engine
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azz
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 posted on January 15th, 2006 at 02:12 PM |
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| Quote: | Originally
posted by Helbus
I eliminated any carby, distributor or idling problems when I went Subaru engine
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Yes and you eliminated any chance of remaiining 'original' too...
How much is a coil and where would I find an old one that works?
Im an Intensive Care Nurse...not a mechanic
[ Edited on 15-1-2006 by azz ]
[ Edited on 15-1-2006 by azz ]
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helbus
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| posted on January 15th, 2006 at 02:17 PM |
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| Quote: | Originally
posted by azz
Yes and you eliminated any chance of remaiining 'original' too...
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I could go back to original, but I choose not too. The beetle we have is 100% original except the CD player. Still has rubber mats on floor and had
original 1971 windscreen up until a week ago.
Most old coils do work, They don't fail very often. It is an advantage if you can get one off another car, however if you cant, any auto parts store
will have them for about $40. A standard Bosch coil is all you need, they fit most 60's and 70's cars. The parts store may have another brand, but
it will still work the same.
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azz
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| posted on January 15th, 2006 at 02:32 PM |
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^^ cheers
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azz
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| posted on January 16th, 2006 at 11:15 AM |
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Carby mechanic says he has checked the electrics (distirbutor, leads, base-plate, coil etc) and he says all of it checks out.
So must be something he did with the carby overhaul.....idiot
Wont post the name of his business here yet but I am very very tempted
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helbus
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| posted on January 16th, 2006 at 12:42 PM |
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Yep once dizzy, coil, leads all check out, there is only really air leaks and carbys left. He may have bumped a rubber elbow on the manifold balance
tube and it may have cracked or popped off. Quite common for old rubbers as they get brittle.
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mnsKmobi
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| posted on January 16th, 2006 at 12:50 PM |
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Try removing the spark plug leads one at a time with the engine running. If one cylinder is to blame removing its lead will make no difference to the
idle. You then need to isolate why it's not working! My suspicion is that it is running too lean because of a vacuum leak. When the choke's on the
mixture is rich enough to run ok. When it's off it's too lean to fire properly.
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azz
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| posted on January 16th, 2006 at 01:19 PM |
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| Quote: | Originally
posted by mnsKmobi
My suspicion is that it is running too lean because of a vacuum leak
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How do we check for a vacuum leak then?
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azz
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| posted on January 16th, 2006 at 01:23 PM |
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I know when he hooks up the air lilfter to the carbs it drops its idle rate quite considerably....
Every now and again (before this debarcle) if the Kombi back fired it was common for a 'vacuum tube' thingy to be blown off. It was easy for me to
diagnose because it would always start but not idle
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azz
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| posted on January 17th, 2006 at 06:19 PM |
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got it back from the carb guy today...he is bamboozled and cant fix the problem.
drove it home and it hasnt stalled yet so he may have fixed it by replacing dizzy leads
he mentioned tapets and because its an auto they may be loosened and that the stalling problem...any ideas?
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mnsKmobi
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| posted on January 18th, 2006 at 11:54 AM |
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| Quote: | Originally
posted by azz
| Quote: | Originally
posted by mnsKmobi
My suspicion is that it is running too lean because of a vacuum leak
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How do we check for a vacuum leak then?
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Apart from the obvious issue of looking for any unattached hoses, the usual way to checkfor vacuum leaks is to spray WD40 or similar around the
throttle shafts, the base of the carbs and where the inlet manifolds attach to the heads. If the WD40 hits the leaking spot some gets sucked in and
temporarily richens the mixture increasing the engine revs a bit.
As I suggested earlier, taking off the leads one at a time can isolate which cylinder(s) is at fault.
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General_Failure
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| posted on January 21st, 2006 at 10:29 AM |
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Does it really cost that much to get the carbies overhauled? What do they do to them for that price?
I think I will go with plan B and fit a dual throat carby from something else rather than pay that to fix my ailing carbs 
Well, if it's the tappets, it would take your mechanic 30min maximum to adjust them.
True enough, old Bosch coils are pretty universal. I usually end up shoving a bosch GT40 in things. Usually to help out with a badly worn electrical
system. I know, naughty me.
Sounds like he badly botched the carb overhaul though. The dual carbs are tempramental to get running properly, however they are very simple too and
it's hard to make a major mistake.
I had a vacuum leak once on the brake booster vacuum line. That took me a while to find.
I realise that you said that a vacuum line comes off when it backfires. It shouldn't backfire in the first place though. There's something else at
work here.
If at first you don't succeed. Build, build again.
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koolkarmakombi
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| posted on January 21st, 2006 at 10:42 AM |
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azz you icu nurses are all the same, ventilate and sedate!
in psych we find the problem!
buzz me, come over, bring beer and we shall fix!
kkk
This disclaimer does not reflect the thoughts or opinions of either myself, my company, my friends, or my dog: don't quote me on that; don't
quote me on anything; this disclaimer is subject to change without notice; text is slightly enlarged to show detail; resemblance to actual persons,
living or dead, is unintentional and coincidental; dry clean only; do not bend, fold, or mutilate; anchovies or jalapenos added to this disclaimer
upon request; your mileage may vary; no substitutions are allowed; for a limited time only while supplies last; offer void where prohibited; this
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azz
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| posted on January 24th, 2006 at 01:59 PM |
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| Quote: | Originally
posted by koolkarmakombi
azz you icu nurses are all the same, ventilate and sedate!
in psych we find the problem!
buzz me, come over, bring beer and we shall fix!
kkk
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wow freaky..who is this????
anyhow Irwin from Phoenix Engineering fixed it and it is running perfectly now...better than ever
he replaced the
coil, points, condensor, disi rotor and loked at the tapets
best $150 ive ever spent
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koolkarmakombi
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| posted on January 24th, 2006 at 02:49 PM |
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Im kkk!
CNC @TPCH psych C/L
Soother of madness
Tuner of VW's
rebuilder of ancient boxer bmw's
and
drinker of beer!
kkk
| Quote: | Originally
posted by azz
| Quote: | Originally
posted by koolkarmakombi
azz you icu nurses are all the same, ventilate and sedate!
in psych we find the problem!
buzz me, come over, bring beer and we shall fix!
kkk
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wow freaky..who is this????
anyhow Irwin from Phoenix Engineering fixed it and it is running perfectly now...better than ever
he replaced the
coil, points, condensor, disi rotor and loked at the tapets
best $150 ive ever spent
|
This disclaimer does not reflect the thoughts or opinions of either myself, my company, my friends, or my dog: don't quote me on that; don't
quote me on anything; this disclaimer is subject to change without notice; text is slightly enlarged to show detail; resemblance to actual persons,
living or dead, is unintentional and coincidental; dry clean only; do not bend, fold, or mutilate; anchovies or jalapenos added to this disclaimer
upon request; your mileage may vary; no substitutions are allowed; for a limited time only while supplies last; offer void where prohibited; this
disclaimer is provided "as is" without any warranties expressed or implied
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azz
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| posted on January 24th, 2006 at 04:54 PM |
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You psych nurses are all the same. Largactil/Respiradone etc, lots of ping pong and ciggies.
You are probably the most hedonistic, self abusive and incestuous group of nurses I know
I too am psych registered
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