transmission M1008

[TedO]

One more- how does one adjust the vacuum modulator valve? My transmission on my M1008 has such a strong kick that I am worried about it knocking my neck out of joint.

 

[Cucvnut]

If you have the stock modulator you can not adjust that.

 

[Drock]

Sounds like you may have a vacuum leak or vac-pump issue

 

[llong66]

Are you referring to the valve on the side of the inj. pump? It has two bolts that hold it to the side of the pump, loosen them up and pivot the valve assembly toward the core support. This will make the tranny shift earlier/softer. There is a spec for this and a special gauge that is specified for this adj.
This link is how a fellow member did his: http://www.steelsoldiers.com/showth...e-Adjustment&highlight=shift+point+adjustment
I have found that just trial and error is the easiest way, adj. a lil drive around the block, if not happy repeat.
Hope this helps!

Greg

 

[TedO]

thanks. I didnt know about this. I will try it after I replace the vac lines.

 

[llong66]

When you replace your vac lines, dont forget the small piece going from the vac. pump to the T if you have a stock setup, check the T and cap on the other end of it too, I just replaced it all.

 

[TedO]

OK, I bought a vacuum modulator that says on the box that it is adjustable. I still dont see how to adjust it.

 

[llong66]

I have never had one, but I seem to remember reading some place that you use a small allen wrench. Take a flashlight and look in the end where the hose connects and see if there is an allen head screw. If I am remembering correctly, you dont have much adj. either way, only a turn or so.