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not running one cylinder

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jonnyb Seriously Crusin Dubber

138 posts · joined Oct 2003 ·

#668442
76 kombi waterboxer has a problem with one pot not wanting to work.
Things checked: head off, valves ok. Compression as same as it can be. Spark getting to plug, plugs swapped around. Fuel is getting to cylinder as it is getting wet. What is left to check? All help appreciated. thanks

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#668513
76 kombi waterboxer has a problem with one pot not wanting to work.
have you have an engine transplant
76 should be a 2L air cooled engine ???
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

jonnyb Seriously Crusin Dubber

138 posts · joined Oct 2003 ·

#668519
Not air cooled, injected water cooled,will check the year again.

BiX Veteran Volks Folk

2,499 posts · joined Sep 2002 ·

#668567
Maybe water could be the problem........ 🤪
I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!

Sides Veteran Volks Folk

2,220 posts · joined May 2007 ·

#668570
I was gonna ask how you know it isn't running on that cylinder... no heat on the header from there, or does the engine not change idle when you disconnect the plug lead to it ??? Only thing missing on your list I think would be checking the plug leads good and in the right order, but I'm sure you've done that already.

Bit of a stretch, maybe an exhaust blockage so on the intake stroke it doesn't actually draw any mixture in ???
VWDCQ vice pres & web dude - vwdcqinc.org.au
Join a car club - get car peeps

My toys
'70 Hillclimb Bug 'Jezebel' w/- Haltech EFI - http://bit.ly/VwTNtQ
'60 KG Coupe - resto kinda started
01 New Beetle - gf's car, but I turn the spanners

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#668582
must be a 86 model then yes good point how do you know its not running on one cyclinder ???

Bit of a stretch, maybe an exhaust blockage so on the intake stroke it doesn't actually draw any mixture in
Ive actually had that before on a old 1200 engine wouldnt pull the skin of a custard had to use a chisel to remove the carbon deposits in the inlet and exhaust ports ran likea dream after that
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

jonnyb Seriously Crusin Dubber

138 posts · joined Oct 2003 ·

#668923
yes 86, exhaust not heating up.no change on lead off,was holding compression

Sides Veteran Volks Folk

2,220 posts · joined May 2007 ·

#668959
Hmm, well that's just plain weird then - glad it's you struggling with it John and not me !!!

Not going to help find out why it's not firing, but if you disconnect all the other plug leads and crank it over with just the problem one connected, does it even try to fire on that cylinder at all ???

Fuel + air + spark HAS to equal at least a pop I would've thought.... 🤪
VWDCQ vice pres & web dude - vwdcqinc.org.au
Join a car club - get car peeps

My toys
'70 Hillclimb Bug 'Jezebel' w/- Haltech EFI - http://bit.ly/VwTNtQ
'60 KG Coupe - resto kinda started
01 New Beetle - gf's car, but I turn the spanners

BiX Veteran Volks Folk

2,499 posts · joined Sep 2002 ·

#669074
Does the plug lead work on another pot? maybe a broken plug lead?

I would double check the plug leads are connected right. Is the dizzy aorund the worng way? like dave says (and you have told me many a time) if its got fuel + air + spark it should do something!
I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!

jonnyb Seriously Crusin Dubber

138 posts · joined Oct 2003 ·

#669299
injector has the end broken need to change then see if fixed

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#669360
injector has the end broken need to change then see if fixed


U didnt say it was injected yes broken wire to the injector will not allow any fuel to be delivered
so it wont run on one cyclinder
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409