Ahh....Smokier 1HDT

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B Point

B Point

Joined
May 25, 2008
Threads
33
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741
Location
Ito city, Shizuoka Japan
My '93 1HD-T with 230,000kms is a pretty regular white smoker when idling and has always bothered me at night when sitting in traffic when you can see the smoke in the lights of the car behind you. Over the Christmas break I took a trip up to Hokkaido and was driving around in -20C for ten days or so. To prepare for the cold I switched oils from thick 20-50 dino oil to 10-40 Wako Synthetic. It's the latest, greatest oil that all the old diesel cruisers in Japan are switching to. In conjunction they run an additive in the diesel in Hokkaido like they do in Canada for cold compatibility.

Well, after I got back down here in warmer climes I've noticed the truck smoking a lot more and me being the paranoid type thinks it has a little more of a bluish tint to the smoke but I'm not sure as it smells like it did before. I hope it's not oil related. What's the consensus on you guys running winter diesel in Canada? Are you getting more smoke? I still have 3/4 tank of the blended diesel to run through before I can pinpoint whether that's the cause or not.
 
True winter diesel here burns really clean in our trucks as its more of a Kerosene I believe. It may be the thinner oil being synthetic that its weeping through your turbo?

I have my blow-by disconnected from my intake so I know for sure that my turbo is slightly weeping, for some reason it has stopped to an extent and I have a cleaner exhaust at operating temp right now... I have about 3/4 tank of American Diesel in there right now which is junk compared to local (burning wise) but I notice it
 
Yes, the Japanese use kerosene, too. I just remember one of you guys in western Canada having issues with smoke and thinking it was the winter diesel. I can't remember if it was determined to be the result or not though.
I'm going to pull the blow by tube off and run an extension tube down to a soup can connected somewhere on the chassis. I had a proper catch can on the truck for a while but took it off as I though it was a little restrictive. I suspect indeed it may be this thinner oil weeping through the turbo.
 
It kind of came out that in western Canada that petrocan was the cleanest diesel. Authersland I think was the guy you're thinking of. Christian you're ct26 hybrid turbo is blowing oil already?
 
I think I screwed something up..... oops lol

Yeah Petro Canada Diesel for some reason or another around here seems to work damn good, its base stock is from Imperial Oil (ESSO) I don't know what their additive package contains though. I have no idea what the base stock is used for anything outside the Lower Mainland is though.
 
Ah.....reversed route Provent..
 
I had a similar issue, my new truck was much smokier than my old one when I 1st got it, and even after the long roadtrip home would puff a black cloud on a cold start, and there was a definite haze in the headlights behind me when driving at night.

I changed the fuel filter and filled the new filter with a can of seafoam, and pretty well immediately my smoke issue was gone! Might be worth a try?
 
dadinabarrel said:
Looks great, just gotta get it to
Australia now :)
Click to expand...
Someone in Sydney is selling it on Ebay. I suspect its not 100% legal here because if it was they would have been selling it in the shops with all the other potions long ago.
I think it makes huge clouds of smoke when its doing its job
 
Yes. I keep hearing about seafoam as well but haven't seen it here in Japan. There is usually something similar within the Japanese market for most products but haven't really looked for anything "seafoam like" yet. Wako's have a brand new diesel injector cleaner that is supposed to be amazing for cleaning up smoke but I'm not really sure my sudden increase in smoke is fuel related. Oil blow-by or weeping turbo seals with the new synthetic oil seems the more logical culprit.
 
Asutherland...cheers.. Ya, that and the original thread. Once I run through this tank of Hokkaido blend I'll have a better idea of what's going on. Regardless, mine is more smoky than usual but no where near as smokey as that first video you posted....holy $hit it was really puking out of there...haha.
 
IanB said:
I had a similar issue, my new truck was much smokier than my old one when I 1st got it, and even after the long roadtrip home would puff a black cloud on a cold start, and there was a definite haze in the headlights behind me when driving at night.

I changed the fuel filter and filled the new filter with a can of seafoam, and pretty well immediately my smoke issue was gone! Might be worth a try?
Click to expand...
@IanB Iknow this was 6 years ago but wanted to touch base with you. I'm having this exact same problem with my 1hdt. You still stand behind this? I've used seafoam once and it worked a treat on my gasser. About to order a new filter as I've never changed it out since I've had my hdj81.
 
Sd1975 said:
@IanB Iknow this was 6 years ago but wanted to touch base with you. I'm having this exact same problem with my 1hdt. You still stand behind this? I've used seafoam once and it worked a treat on my gasser. About to order a new filter as I've never changed it out since I've had my hdj81.
Click to expand...

Ya, I still do this any time I change the fuel filter.
 
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