Is smoke normal? (1 Viewer)

[Eric Winkworth]

Hey guys

I know I promised pictures but I have been busy, I will hopfully take some in the next few days. I noticed my BJ70 smokes for about a second when you first start it, after that I never see anymore smoke out of it. Do alll of them do that, or is she just getting tired. She runs, starts and smells good (for a diesel)

 

[silvercrusher]

smoke can tell you alot about an engine ifn ya know what color it is.?

 

[crushers]

smokes for a whole second?!?! i wouldn't worry about it, ihave seen them smoke for much longer than that esp first cold start of the day...

 

[dieseldog]

Welcome to the world of compression ignition!

 

[roscoFJ73]

Its only when it blots the neighbours from view for half an hour you got a problem and so have the neighbours

 

[Eric Winkworth]

lol, good to hear it looks likes blue smoke, but I have started it about 30 times cold off this oil change and the oil level hasn't changed, so I guess it isn't too big of a deal.

Anyway, I took a few shots of the old girl after I cleaned he all up and got her oiled.

I know I hate pics that arn't action shots too, I will take some it is just hard when you are driving and you don't want passengers to get too muddy, lol

Cheers

Man I don't know what it is, but I can't upload them
Damit

 

[Diescipel]

Pix have to be relatively small in size, so you have to decrease the resolution or crop them etc.

But is blue smoke normal at start? I get a lot of white smoke 1st start of the day, or if sitting on a cold day, but not blue. Maybe some grey in there, black when hill climbing.

B

 

[lowenbrau]

I'll bet your rig doesn't smoke like this. It was a beautiful thing at River Shiver to have twenty odd diesels rattle to life after spending a -20C night, not plugged in. The odd one needed a visit from the Ether Bunny but not many. You should check your glow plugs and make sure your EDIC is over fueling on startup.

 

[Eric Winkworth]

maybe mine does look more white than blue, like I said after a bunch of starts my oil level hasn't decreased at all, so it must be excess fuel. Mine starts like a dream, one quick flick of the key and she on, 24 v starts her up really nice

 

[David*BJ70]

I already read something like that :

white smoke : normal condensation in the fuel line

grey or black : to much fuel ( it not all burn. Like the bike truck)

blue smoke : oil in the system... bad news

 

[Eric Winkworth]

Sweet hear they are

 

[Eric Winkworth]

As you can see we have a family of Fords, well the ranger in front of my cruiser is my first and last ford, from now on toyota and lexus

cheers

 

[bj70alex]

Sweet hear they are

Eric,

I had a bit of blue smoke (10 -20sec, max) on start ups after it's been sitting overnight and just lived with it until I decided to replace the valve seals. After I removed the valve rocker assembly I was shocked when I saw a very exsessive wear on exhaust rockers. I don't know why it happend only on exhaust roceres. So, instead of replacing the valve seals, I have to remove the head, replace the rockers and either regrind valves or replace them. The truck has only 197000km on her and since I boughtit 13 years ago, I never missed an oil change. Here are the picture.
As might as well, I would like to hear opinions on why only the exhaust rockers have an exsessive wear and intake rockers and valve look perfectly normal.

Thanks,
Alex

 

[Eric Winkworth]

mine doesn't do it for 10 seconds, it puffs for a second if not less, it is white smoke too, just thought it looked blue, looking at it with my black drivway behind it.

Did your use up oil at all?

What kinda oil are you running in your rig, when the time comes I have a friend that works at a local engine machine shop, so he will do the head on it for me for a case of beer and of cousre, me doing most of the work.

Still I would like to turbo the old girl, but first I wanna get a snokel for it, seems like the intake is on the wrong side of the airbox for the snorkel.

Take a look, BTW the metallic paint you see is a hurtin engine detail job the guy that owned the truck before did. Man did he like to put money into the thing, he had a 11 000 dollars worth of recipts, some from toyota dealers other from diesel specialists, he also had records of oil changes every 6000 km from new which really amazed me, still the old girl needed a leak fixed in the tank and some vent hoses and the filler tube needed some work.

The ownership and the guy I bought it off say it is an 86 but I have yet to see one with a 3.4 diesel and no records at the local auto parts stores for a 3.4 in 86 could it be old stock. I know it was the final year selling the diesels in canada.

 

[bj70alex]

mine doesn't do it for 10 seconds, it puffs for a second if not less, it is white smoke too, just thought it looked blue, looking at it with my black drivway behind it.

Did your use up oil at all?

What kinda oil are you running in your rig, when the time comes I have a friend that works at a local engine machine shop, so he will do the head on it for me for a case of beer and of cousre, me doing most of the work.

Still I would like to turbo the old girl, but first I wanna get a snokel for it, seems like the intake is on the wrong side of the airbox for the snorkel.

Take a look, BTW the metallic paint you see is a hurtin engine detail job the guy that owned the truck before did. Man did he like to put money into the thing, he had a 11 000 dollars worth of recipts, some from toyota dealers other from diesel specialists, he also had records of oil changes every 6000 km from new which really amazed me, still the old girl needed a leak fixed in the tank and some vent hoses and the filler tube needed some work.

The ownership and the guy I bought it off say it is an 86 but I have yet to see one with a 3.4 diesel and no records at the local auto parts stores for a 3.4 in 86 could it be old stock. I know it was the final year selling the diesels in canada.

Eric,

I always use Castrol 15W40 year round. We don't have any realy cold weather in Kentucky.
As far as using oil, she didn't use a drop of oil.

Toyota imported 70 series to Canada only 3 years, 85 through 87. 85 is 12v and 86s and 87s are 24 volts. They came only with 3.4L

Alex

 

[crushers]

Eric,

I had a bit of blue smoke (10 -20sec, max) on start ups after it's been sitting overnight and just lived with it until I decided to replace the valve seals. After I removed the valve rocker assembly I was shocked when I saw a very exsessive wear on exhaust rockers. I don't know why it happend only on exhaust roceres. So, instead of replacing the valve seals, I have to remove the head, replace the rockers and either regrind valves or replace them. The truck has only 197000km on her and since I boughtit 13 years ago, I never missed an oil change. Here are the picture.
As might as well, I would like to hear opinions on why only the exhaust rockers have an exsessive wear and intake rockers and valve look perfectly normal.

Thanks,
Alex

wear like that is very normal. i have seen hundreds of 3B rockers with the same wear. as you can see from the sludge on the arms and under the cover the oil was burnt or used long after a change was due (at least that is my take on it) someitme in the engiens life.
i feel the supplier of the 3B to Toyota (Hino?) didn't have the rocker tips hardened enough, also i feel if they would have run the oil journel down each of the rockers and had the oil spirt out right where the rocker contacted the valve the rockers would last much longer.
cheers

 

[bj70alex]

Wayne,

Question, what would you do, replace just the rockers or remove the head and either regrind the valves or replace them . Also, do you think it might cause other problems? I've send you email yesterday with all pictures, look at #4 exhaust valve. I couldn't post the pictures because of the size. Interesting thing, only exhaust rockers got damaged.

Thanks,
Alex

 

[brownbear]

I would not be too concerned about a puff of blue or white on start up. My TDI VW does that, and its only got 20k on it. A little puff of blue. Does it when its cold every time. I have seen VW's do it at the dealership. Diesel is an oily fuel, so that may be extra fuel present. I dunno. But I see it as very common. But if its pouring blue, not just on cold start up, then you have a reason to be concerned.

If I under glow, I get the full on fog of white smoke on cold start up, and it had some blue in it. Neighbors must love it. Especailly when there is no wind, just hangs there.

 

[Stone]

I agree...I wouldn't worry about it either. When I start mine up, I get a small puff of black smoke followed by one or two seconds of blue. I don't consume much oil between changes, and I've done my valve set. I know that one or two of my rockers do have a little bit of a "weird" wear though...it has a tiny little lip (probably due to the valve set not having been done by the PO for a long time).

Nice mint 70 by the way. Good find.

 

[crushers]

Wayne,

Question, what would you do, replace just the rockers or remove the head and either regrind the valves or replace them . Also, do you think it might cause other problems? I've send you email yesterday with all pictures, look at #4 exhaust valve. I couldn't post the pictures because of the size. Interesting thing, only exhaust rockers got damaged.

Thanks,
Alex

take the rockers off and get a machine shop to grind them. should be about $5 per rocker, reset the rockers and drive it... if you are going to pull the head then you could open up a whole new set of concerns...
cheers