White smoke, reduced RPM, increased fuel consumption

[Slow Mo^cean]

That makes me jealous of my $300 Matco compression tester that looks exactly the same.

 

[weinie]

Oh crap! Youre right! That adapter DOES look like it should fit. Let us know how it works and what readings you get.

 

[robertsapp]

Probably won't help much

But I thought I'd throw this out there anyway in the small chance that it might actually do some good. Are you sure your smoke is white? The only reason I ask is because a couple of years ago, we had a problem with increased fuel consumption and decreased power under load, and we were getting a bit of smoke, but it was a light gray color, and not pure white. Turned out to be the final stages of a plugged exhaust elbow. Replaced the elbow, and viola, the smoke went away, the power came back, and the fuel efficiency returned to normal.

 

[jviss]

But I thought I'd throw this out there anyway in the small chance that it might actually do some good. Are you sure your smoke is white? The only reason I ask is because a couple of years ago, we had a problem with increased fuel consumption and decreased power under load, and we were getting a bit of smoke, but it was a light gray color, and not pure white. Turned out to be the final stages of a plugged exhaust elbow. Replaced the elbow, and viola, the smoke went away, the power came back, and the fuel efficiency returned to normal.

Hi Robert,

That's an excellent suggestion, thanks. I thought of the elbow when I was going down the path of thinking it was raw water flow. I haven't looked yet. I replaced the elbow in 2004, I think. I wonder if it coul dhave become clogged up in that time.

The smoke looked pretty much white.

jv

 

[jviss]

Oh crap! Youre right! That adapter DOES look like it should fit. Let us know how it works and what readings you get.

I will. I actually read the manual that came with the compression tester (duh)! It's quite good. Only one question. The procedure, in summary:

• warm up engine for 10 minutes;
• remove all the injectors (or glow plugs, if that's where you're probing pressure);
• fuel solenoid off - or, in my case, fuel shutoff cable pulled out;
• "speed pedal all the way down" - which I imagine translates to full speed in our case;
• install gauge, crank for 8 revolutions. Note max pressure and speed at which it came to max pressure;
• repeat for all cylinders.

My question is: why max speed setting?

Thanks,

jv

 

[weinie]

I will. I actually read the manual that came with the compression tester (duh)! It's quite good. Only one question. The procedure, in summary:

• warm up engine for 10 minutes;
• remove all the injectors (or glow plugs, if that's where you're probing pressure);
• fuel solenoid off - or, in my case, fuel shutoff cable pulled out;
• "speed pedal all the way down" - which I imagine translates to full speed in our case;
• install gauge, crank for 8 revolutions. Note max pressure and speed at which it came to max pressure;
• repeat for all cylinders.

My question is: why max speed setting?

Thanks,

jv

Because the manual was printed in China where the kit was made??!?!?!?