Author Topic: Feeler: Lotsa White unburnt Diesel (Read 4984 times)

Smokey Eddy · « **on:** February 22, 2009, 09:59:40 pm »

new aaz head

1.6TD with new rings and bearings

all of which have less than 200km on them.

Just wondering how long i should expect to wait for the rough cold starting to go away? I started it just now for the first time without the block heater and the white smoke was horrendous. It took at least 15 seconds of glow plugs and cranking to start and when it did the white smoke filled my cu-de-sac and all i did was drive it from the drive way into the garage.

Could I be out a glow plug or two? I have all my GPs individually wired to my relay and switch. With the block heater it starts fine. 1 or 2 revolutions. When hot it's an insta-start.

Anyone else who's done the AAZ swap on their 1.6td have messy cold starts? It's not even that cold. 8 Celsius which is, just doing the math in my head here, 46.4 F.

dillenger1 · « **Reply #1 on:** February 23, 2009, 03:17:39 am »

that sounds more like timing ed?i hate to say,but ring smoke shouldnt fill a cultasack

Smokey Eddy · « **Reply #2 on:** February 23, 2009, 10:14:35 am »

still too retarded?

jtanguay · « **Reply #3 on:** February 23, 2009, 10:30:26 am »

my motor is starting a bit rougher when cold too... i think the rings still need time to seat properly. even with the total seal quickseat stuff.

Smokey Eddy · « **Reply #4 on:** February 23, 2009, 10:33:00 am »

like ... super hella rough as in you need to use the pedal to keep it from dying? sounds like its running on three cylinders kind of rough?

jtanguay · « **Reply #5 on:** February 23, 2009, 11:05:06 am »

Quote from: "Smokey Eddy"

like ... super hella rough as in you need to use the pedal to keep it from dying? sounds like its running on three cylinders kind of rough?

ever since i changed my old fuel filter its been a lot better (no more bubbles in the lines) but it still misses for about 2 seconds after startup (at about -6C or lower).. and thats with the cold start lever out. it seemed to be much better when i first started driving. no glow plugs though :lol: damn im in love with TDI's

i have 4 new gp's that i'll be installing shortly. i need to find a 1.5-2min timer relay to get them to work properly though...

Smokey Eddy · « **Reply #6 on:** February 23, 2009, 11:12:33 am »

that doesn't sound as bad as mine. Mine was like a rough stuggle for life that filled the cove with white death

but at least it started. It wouldn't have started with the old head.

saurkraut · « **Reply #7 on:** February 23, 2009, 11:41:46 am »

I started mine last fall in about the same temprature and it started fine. Mine actually started better than with the 1.6 head as I had the right head gasket thickness. You have something else going on.

How fresh are your injectors?

I wonder if you rings aren't seated yet. Did you hone it adaiquatly? Was there a ridge at the top of the bore from the old rings? Maybe more time on your rings is in order.

Seems to me someone else did a 1.9 head on a 1.6 block and had the same bug fogger when cold effect as you had. Once it warmed up it was fine. I don't remember what was worn out though but it did have some wear issue that caused it.

Smokey Eddy · « **Reply #8 on:** February 23, 2009, 01:18:31 pm »

Thanks for the input fellas.

I definately would have torqued down at TDC... I would have had no reason to move the bottom end...

once i had the belt on i had the injectors and glow plugs out i turned everything by hand with a wratchet about about 10 minutes to prime the IP and oil everything. It wasn't hard to turn... it was timed properly... no valves hit anything.

I've never honed cylinders before so i don't know what "Adequate" honing would be? I just did it till there were swirlies in the piston walls. The lip wasn't bad. Only just could feel it once i scraped the carbon off with a razor blade.

The car has only been driven for 1 day. like i said, like ... 200km tops...?
My question was, do unseated rings cause this kind of struggle normally?

when hot it fires right up instantly. I can't stress how instantaneous the starting is when it's up to temp.

jtanguay · « **Reply #9 on:** February 23, 2009, 02:16:12 pm »

Quote from: "Smokey Eddy"

Thanks for the input fellas.

I definately would have torqued down at TDC... I would have had no reason to move the bottom end...

once i had the belt on i had the injectors and glow plugs out i turned everything by hand with a wratchet about about 10 minutes to prime the IP and oil everything. It wasn't hard to turn... it was timed properly... no valves hit anything.

I've never honed cylinders before so i don't know what "Adequate" honing would be? I just did it till there were swirlies in the piston walls. The lip wasn't bad. Only just could feel it once i scraped the carbon off with a razor blade.

The car has only been driven for 1 day. like i said, like ... 200km tops...?
My question was, do unseated rings cause this kind of struggle normally?

when hot it fires right up instantly. I can't stress how instantaneous the starting is when it's up to temp.

the 1.9 swirl chambers are larger than the 1.6 IIRC, which could affect cold starting... i wonder how much effort it would be to install the 1.6 ones?

try this: let the engine turn over 1-2 revolutions with the starter without glow plugs (when cold). stop, and then let the glow plugs do their magic. now try starting it and see how she goes. if it catches good, then just use that trick

if you're using 1.9 glow plugs, they usually stay on for a minute or two after startup. that will help clear out some of the smoke. you will need a timed relay or just a toggle switch for that though... unless you want to fork out for the 1.9 relay.

Smokey Eddy · « **Reply #10 on:** February 23, 2009, 02:18:21 pm »

I'm using a toggle.

It's not just hard starting its hard starting + when it starts it runs VERY rough no matter if the GPs are on or off and the white just consumes my neighbours house

jtanguay · « **Reply #11 on:** February 23, 2009, 02:20:39 pm »

Quote from: "Smokey Eddy"

I'm using a toggle.

It's not just hard starting its hard starting + when it starts it runs VERY rough no matter if the GPs are on or off and the white just consumes my neighbours house

yea that sounds like a bad GP or two then...