ETW1 carburetor

Discuss fixes, upgrades and modifications to your M37

Moderators: Cal_Gary, T. Highway, Monkey Man, robi

Post Reply
jahrafa
PVT
PVT
Posts: 26
Joined: Tue Jun 16, 2020 4:20 pm
Location: Puerto Rico/Florida

ETW1 carburetor

Post by jahrafa »

Hello,
Is it possible to eliminate the governor on a ETW1 carburetor? My M37 runs very slow and it does not accelerate smoothly. It is hard to rev up and dies down when going up-hill.

Rafael
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
ashyers
MSGT
MSGT
Posts: 822
Joined: Mon Jan 05, 2015 8:20 pm
Location: Oakland CA

Re: ETW1 carburetor

Post by ashyers »

Rafael,
Not without some pretty serious surgery and fabrication :)!!

If adjusted properly it works really well. I'd suggest you try that first. It takes a little patience, but it is worth it.

Andy
jahrafa
PVT
PVT
Posts: 26
Joined: Tue Jun 16, 2020 4:20 pm
Location: Puerto Rico/Florida

Re: ETW1 carburetor

Post by jahrafa »

Thank you, Andy. Everything I read says it is adjusted at 3200 RPM's. Is it that it needs to be acelarated at that rate while adjusting? or that it should not be adjusted to acelerated more than that? I am not understanding the procedure on the TM well.

Have you done it?

Rafael
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
ashyers
MSGT
MSGT
Posts: 822
Joined: Mon Jan 05, 2015 8:20 pm
Location: Oakland CA

Re: ETW1 carburetor

Post by ashyers »

Rafael,
There’s a bunch of posts on adjusting the governor. Charles Talbert gave really great instructions and that’s how I learned to do it. My truck is governed to 3000, but you can set it where you like. You tune 2 variables, spring preload and spring constant with 2 concentric screws. One will set max RPM, one is the “aggressiveness” of engagement. There is a bit of trial & error involved to get it just right, but it’s not hard. If I have time I’ll search up my prior post.

Andy
ashyers
MSGT
MSGT
Posts: 822
Joined: Mon Jan 05, 2015 8:20 pm
Location: Oakland CA

Re: ETW1 carburetor

Post by ashyers »

Cal_Gary
Moderator
Moderator
Posts: 4241
Joined: Mon Oct 22, 2007 5:51 am
Location: Draper, Utah

Re: ETW1 carburetor

Post by Cal_Gary »

The governor adjustment is also featured in the Dave Ahl M37 Resto guide.
Gary
Cal_Gary
1954 M37 W/W
MVPA Correspondent #28500
jahrafa
PVT
PVT
Posts: 26
Joined: Tue Jun 16, 2020 4:20 pm
Location: Puerto Rico/Florida

Re: ETW1 carburetor

Post by jahrafa »

Thank you!
jahrafa
EN2 Ruiz
1952 M38, 1952 M37
Post Reply