30 mph tops

[Soupermike]

What can I look at to remedy this situation? I have just finished my restoration and started driving my truck in a higher speed limit zone and all I can get up to is 30. I have a new carb, electronic ignition, new distributor cap, new spark plugs, and electronic fuel pump. Any help is appreciated.

 

[Floridianson]

Governor set too low? Looking good though. I wish I had a Tac hooked up as my motor seems to be screaming at 45 mph. I have pushed it farther a couple of times but now I drive at 35 / 40.

 

[CMPPhil]

What can I look at to remedy this situation? I have just finished my restoration and started driving my truck in a higher speed limit zone and all I can get up to is 30. I have a new carb, electronic ignition, new distributor cap, new spark plugs, and electronic fuel pump. Any help is appreciated.

Note trying to be funny but are you sure the transfer case is in HI range? Don't laugh laugh I've started off in my CMPs with them in low range, generally I only get to 2nd gear before it becomes evident, but have made it 4th. As to tack as an add on really helpful in get to know your truck.

The comment about govenor, being out of adjustment is a good starting point. Also check to see if the throttle plate is really opening all the way.

Keep us posted on what you find. Truck looks good.

Cheers Phil

 

[M35A2-AZ]

Nice looking restore. I would check fuel filter, maybe the timing.

 

[Mullaney]

What can I look at to remedy this situation? I have just finished my restoration and started driving my truck in a higher speed limit zone and all I can get up to is 30. I have a new carb, electronic ignition, new distributor cap, new spark plugs, and electronic fuel pump. Any help is appreciated.

.
As I was reading I had the same idea as CMPPhil .
Maybe the transfer linkage isn't quite right?

That sure is a NICE looking truck!

 

[Floridianson]

(1) Speed of the M37 | SteelSoldiers Older thread I was reading. Also looking through the shop manual adjusting the governor is not a whole lot of fun if you need special tools.

 

[glcaines]

That is one nice looking M37! I agree with all of the previous posts, but I would start with checking whether the throttle is opening all the way and then re-check the timing, assuming the T-case is in high.

 

[GopherHill]

Also check ignition timing. Check for dragging brakes and that parking brake is off.

 

[John Mc]

Have you checked your compression?

 

[Soupermike]

Items checked ok:
No sticking brakes
Parking brake is off

I really didn’t see a noticeable difference in high and low gears which leads me to believe my linkage is a problem.

Didn’t get to look into the carb yet. I haven’t checked compression either.

 

[NDT]

If you are in 4th gear and the engine is screaming against the governor, sounds like you are in low range.

 

[M35A2-AZ]

Items checked ok:
No sticking brakes
Parking brake is off

I really didn’t see a noticeable difference in high and low gears which leads me to believe my linkage is a problem.

Didn’t get to look into the carb yet. I haven’t checked compression either.

I would think if you do not see a difference in high or low, I would say it is in Low.

 

[John Mc]

Items checked ok:
No sticking brakes
Parking brake is off

I really didn’t see a noticeable difference in high and low gears which leads me to believe my linkage is a problem.

Didn’t get to look into the carb yet. I haven’t checked compression either.

When I'm in high range, I shift out of 1st gear at about 5 or 6 MPH. In Low range, thats about where I shift out of 2nd gear. (You can wind it up higher, but that's where it seems "comfortable", at least on more or less level ground

 

[John Mc]

If it's just a matter of needing to adjust the linkage, that is pretty simple. You can find detailed instructions in TM 9-8030, section 196 "Transfer Control Linkage Adjustment" (starts on page 304 of my copy).

You might also check to make sure the linkage rod is not mangled. (If I recall, there is supposed to be a slight bend in the rod, but it's just a few degrees.) VPM has replacements for $25.

If it's not something obvious like that, you've probably got a bit more work to do.