Joined: Feb 2008
Tuesday February 26, 2008 08:48
Yes, I understand, and I dug out the engine manual to get the proper settings. However, the weather here has changed my plans for the day.
It’s rainin’ solid here today, and I reckon I’ll be spendin’ the day indoors readin’ up and doin’ taxes and other paperwork.
I’m lookin’ at the engine manual. It says, in reference to “Measurement/Adjustment Period:”
“Once the initial measurements and adjustments have been made, any adjustments beyond this point should be made only as required to maintain satisfactory engine performance.”
Actually, the engine has been running good, and the only reason I decided to tune it up is because it's been so long since I had it done years ago.
It goes on to say:
This is a change from the original recommendation, which required checking, and (if necessary) adjusting valve lash and injector heights at 120,000 miles for vehicle engines.”
It’s probably been over 300,000 miles since I had the last overhead adjustments made.
I found out, reading the manual here, if I’ve understood correctly, that the intake and exhaust clearances can be measured without removing the jakes. I’ll plan on doing that.
If I’m thinking wishfully, I’m thinking that maybe the measurements will be right and no adjustment will be called for.
If I’m thinking realistically, I’m thinking that I’ll probably need to be removing the jakes in order to make necessary adjustments.
I see that injector adjustment calls for a height gage. Quote: “The fuel injector height is measured using the required Injector Height Gage as listed in table 12-2.”
I guess I’m looking at buying a height gage. For some reason I had the idea that the injectors were adjusted with a feeler gage the same as the valves.
I guess I must appear dumb for somebody who’s owned this engine for 8 years. What can I claim in defense, in my own behalf? It has been an amazing piece of machinery that has performed so well, and given me so few problems, that I’ve never gotten to know it from the inside. The only thing I know about it is that it has been dependable and runs well. EXCEPTION: Now I know how to change the diamond seal and the perimeter seal.
Makes one proud of the phrase, “Made in the U. S. A.”
There’s another note of interest here in the manual.
The slave piston adjusting screws used in the Series 60 engine brake prior to August 1994 were reset screws. Reset screws are not to be dissembled in the field. Effective with August 1994 engines, reset screw assemblies were replaced with Power-Lash assemblies.”
My engine is a 1993. Does that mean that I do not make an adjustment to the slave piston screw on my jakes?
Edited: Tuesday February 26, 2008 at 08:55 by stonefly