Smokey 4.2 TD Cruiser 80 Series.

Submitted: Friday, May 02, 2008 at 07:06
ThreadID: 57193 Views:2160 Replies:7 FollowUps:11
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Hi Guys,
Just wondering what would cause this smoke.
I've got a 91 TD GXL 80 series manual cruiser.She's got 286500 k's on her now, goes a treat. But she blows smoke. Has done for a while now. I've noticed when I travel away from the sun late evening. It's whitish in colour. A mate has followed me and said that it's not dark like oil smoke it's rather white and fine not heavy and black. After doing some heavy beach work at high tide in the soft sand the smoke completely disappears. He said it does not smell like oil smoke. When cold it is more noticeable. It does appear to burn oil under normal driving conditions but under heavey slow going it does, not much though. Any thoughts would be appreciated.
Another query I have is when I bought her 3 years ago she came with 31x10.5x15 Duellers on her. She does about 2500rpm at a 100k, is this normal rpm for that speed? I ask cause I find myself wanting to reach for another gear when doing 100kph? I was thinking that the next set of tyres that goes on her would be 33's to lower the revs that she does just a tad.
Do those revs sound about right for doing a 100k?.
I was wondering if the two are related.

Hairs.
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When you have a 50,50 choice,
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Reply By: Hairs - Friday, May 02, 2008 at 07:12

Friday, May 02, 2008 at 07:12
typo,
The bit about burning oil is suppose to read that it does not burn oil under normal conditions.

Sorry.
AnswerID: 301610

Reply By: Rock Ape - Friday, May 02, 2008 at 07:41

Friday, May 02, 2008 at 07:41
White smoke is unburned fuel, your injectors probably need attention, a set of 33's will lower the revs a little
AnswerID: 301613

Follow Up By: Hairs - Friday, May 02, 2008 at 15:38

Friday, May 02, 2008 at 15:38
Hi Rock Ape,
I can't see anywhere in the service history if the previous two owners had touched the injectors.
They have listed everything that has been bought, Fixed or add to it.
So may be a trip to an Injector specialist .

When I first looked at before I bought her she had 33 on. When I went back they had taken them off and put the 31's on. I couldn't get them to put the 33's back on.

No use losing sleep over it.
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Reply By: autosparky - Friday, May 02, 2008 at 08:08

Friday, May 02, 2008 at 08:08
i thought black smoke wsa unburnt fuel
AnswerID: 301616

Follow Up By: Mainey (wa) - Friday, May 02, 2008 at 10:32

Friday, May 02, 2008 at 10:32
yes, as seen in big trucks under load
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Follow Up By: Rock Ape - Friday, May 02, 2008 at 12:27

Friday, May 02, 2008 at 12:27
Both white and black smoke indicate unburnt fuel
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FollowupID: 567726

Follow Up By: autosparky - Friday, May 02, 2008 at 21:58

Friday, May 02, 2008 at 21:58
depends on the quality of the fuel white smoke is indicative of oil as fuel
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FollowupID: 567863

Follow Up By: Member - DOZER- Friday, May 02, 2008 at 22:08

Friday, May 02, 2008 at 22:08
Black smoke denotes too much fuel, or bad timing causing incomplete burn, white smoke denotes not enough air or compression. Check the inlet for estrictions and also the turbo for excess play.
If you are not loosing coolant, and the turbo is boosting well (2000 green light) have the compression chaecked.
Lastly, it is a common fault of these motors to bypass oil back into the inlet. Install a pneumaticr water trap in the line, and empty the oil each fuelup.
Andrew
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Follow Up By: autosparky - Friday, May 02, 2008 at 22:20

Friday, May 02, 2008 at 22:20
more commonly it means that the rings are on the way out, especially with an older t/d motor
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Reply By: traveller2 - Friday, May 02, 2008 at 08:14

Friday, May 02, 2008 at 08:14
Whitish smoke can often be condensation in the exhaust burning off.
Whitish sweet smelling smoke can also be coolant burning off ie: leaking head gasket or coolant somehow making its way into the combustion chamber, water cooled turbo?.
AnswerID: 301617

Follow Up By: Hairs - Friday, May 02, 2008 at 15:42

Friday, May 02, 2008 at 15:42
Hi Traveller2,
I can't be that, 18 months ago the head warped one very hot November day. It had to be machined, spent quiet a few dollars getting that fixed. The level has not dropped at all in that time.
She's a factory TD.

Cheers
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FollowupID: 567757

Reply By: Matt(WA) - Friday, May 02, 2008 at 09:56

Friday, May 02, 2008 at 09:56
Hairs,
I have a 94 TD 80 Series and run 33's(285 75 16's) on 16x8's. At 100km's an hour on the gps I am doing 2400rpm or just under. Whit smoke normally means unburnt fuel. i would have it checked out by a specialist diesel shop. Get them to put it on the Dyno and have a look. Saves you money if you dont need the injectors done. Though if the injectors havent ever been done I would recomend it. Also I can recomend getting the fuel pump timing done and your valves shimmed. Just had my valves shimmed and its a different car. Hope this helps
Matt

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AnswerID: 301638

Follow Up By: Hairs - Friday, May 02, 2008 at 15:55

Friday, May 02, 2008 at 15:55
Hi Matt,
I'm thinkin' I'll save up and send it to a specialist diesel Grease monkey with a Dyno. As you pionted out its money well spent.
The fuel pump timing could be something as well. I had the top of the pump off a few months back to replace the o' ring in top of the pump. Had a bugger of a time putting that back together. Not good when I have hands the size of dinner plates.
It does not lack power, it goes like the clappers.
I'll look into getting it tested on a dyno.

Thanks for your suggestion

Cheers.
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FollowupID: 567760

Reply By: howesy - Friday, May 02, 2008 at 10:58

Friday, May 02, 2008 at 10:58
32's are equivalent to your standard size tyre. And all the reasons mentioned can give you what you describe including turbo seals. If you never ever have to touch your coolant level I wouldn't worry about it too much until it gets worse then take it in to get checked. it will be more easily diagnosed if you let it play out a little longer. Just make sure you never lose water.
AnswerID: 301651

Follow Up By: Hairs - Friday, May 02, 2008 at 16:07

Friday, May 02, 2008 at 16:07
Hi Howesy,
I dropped into my local tyre shop and 32's are pretty close to the standard setup for my model. My 31's look a bit small, I'll chase around and see if someone locally could maybe loan/borough a set of 33's for a week to give me some idea what rpm it will do.
I always thought the tyres on her where a little on the small size.

I'm put an engine flush in her next time I do an oil change.
Can't hurt.

Thanks for all the ideas guys, I'll work my way through them and see what it brings.

Cheers.

Hairs.
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Reply By: warbo - Friday, May 02, 2008 at 21:20

Friday, May 02, 2008 at 21:20
white smoke is unburnt fuel,black is soot (burnt) when motor is cool white smoke is present when you work it hard engine block heats up and burns excess fuel (no white smoke) A test you can do when cold is at idle have a mate at rear of car you go and crack an injector one at a time motor will shudder but not stop, if smoke clears, it is that cylender causing you grief. If its been looked after it wont be a bent conrod from water compression (water crossing) but after 285k i would do injecter changeout !
AnswerID: 301760

Follow Up By: Hairs - Monday, May 05, 2008 at 12:27

Monday, May 05, 2008 at 12:27
Hi Warbo,
Next weekend when a mate comes over i will give your suggestion try.
Thanks for the tip.

Hairs
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Follow Up By: Member - Hairs (Lawrence,NSW) - Sunday, May 11, 2008 at 20:13

Sunday, May 11, 2008 at 20:13
Hi Warbo,
Gave your suggestion a go and all of them seem the same. No big difference between them.
I'm thinking an injector service is in order, I've replaced the fuel filter, cleaned the K&N air filter and thrown in some Chemtec diesel additive. I asked a mate who would be close by who could help me and there is somebody.there's a bloke in Yamba, I've actually know his younger brother for sometime now. He has a Dyno and is in to diesels. I'll give him a ring and make time to go and see him.

Cheers for all the suggestions guys, Much appreciated.
Thanks.
Hairs
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