Author Topic: 1.6D Cold Start Bad Stumble/Misfire - MK1  (Read 9634 times)

Reply #15November 23, 2015, 08:58:14 pm

RunninWild

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Re: 1.6D Cold Start Bad Stumble/Misfire - MK1
« Reply #15 on: November 23, 2015, 08:58:14 pm »
Maybe throw up a video showing us the problem?

Reply #16November 24, 2015, 01:30:13 pm

Dakotakid

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Re: 1.6D Cold Start Bad Stumble/Misfire - MK1
« Reply #16 on: November 24, 2015, 01:30:13 pm »
"Plug number one had lots of carbon build up."
One or more of those injectors may be not as efficient as used to be. Wear in the nozzle.

Personally, I never start one of these without throttle. What is the point? Give it some throttle and get on with it. If you are that concerned, pull the injectors and get them rebuilt and good luck on finding some good nozzles these days.

Things age. Age shows up at it's own pace. Everything from injectors to compression to cardiac output in your chest, etc.

Be a hero and totally rebuild the entire engine. And injectors. And pump. Then you can expect some perfection.Your abrasive argument about "it wasn't like this 2 weeks ago" ain't worth much.

Give the engine some throttle and clear it's throat on start-up. You need to rev it a little bit to activate the alternator anyway. You may have a small air draw at one of the many copper washers or on that new fuel filter o-ring. The air draw may be so small it clears extremely fast....which is exactly what 15 seconds is to me.

I would NOT advance the timing as that can actually make cold starting worse and your little engine seems to be running well otherwise...but, who really knows. We are going by what you say.

Pull the fuel pump and do a reseal (esp. the front input shaft seal). Replace the small fuel line which directly comes off the fuel tank.

When all else fails, there is a time to get away from the keyboard, stop waving your arms, and move forward on your own. These guys above me have made a good faith effort on helping you.
The mask and the shot(s) are actually an IQ test. If you are wearing or circulating, you just failed the test. I can't feel sorry for you.

Reply #17November 25, 2015, 10:31:22 am

fatmobile

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Re: 1.6D Cold Start Bad Stumble/Misfire - MK1
« Reply #17 on: November 25, 2015, 10:31:22 am »
 Make a mark before you change the timing so if it makes starting harder you can put it back where it was.

 Sometimes a weak starter will work great all summer but not turn it quite fast enough when it gets cold.
 Good list of things that were changed and are working right,.. but I forgot what the problem is.
Tornado red, '91 Golf 4 door, with M-TDI 12mm pump, south bend clutch, VNT-15 turbo, 02A trany
MK4s: 2000 TDI jetta, 2003 TDI wagon, 2000 golf 2.0 gasser.
'84 Rabbit with 1.7TD KY block pistons bored to 80mm, VNT-15
'84 GTI with stock 1.6TD starion intercooler.