IH 3414 plug gap

All other non-specific model Farmall / IH / CASE tractors. (Catch-All)

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Pops140
Cub Star
Cub Star
Posts: 60
Joined: Mon Jun 26, 2017 9:00 am
Zip Code: 20659

IH 3414 plug gap

Postby Pops140 » Wed Jan 03, 2018 10:57 am

Hey fellas I'm just looking for the IH 3414 plug gap specs. The plugs are AC Delco R45s. First off will these plugs work I saw somewhere that said delco R 45 I found R 45 at Napa but they didn't have 4 so she had the R45s model which were alittle longer than the reg 45 plug but apparently the s is a code for a little longer thread pattern. Like 3/8 of an inch I hope that's not too long. But I can't find anything on the plug gap except I saw on some thread 26 thousandths I thought that was a mistake because I have never seen such a tight gap on a plug. So anyone with the knowledge please help a fellow IH lover out. Thanks

Eugene
Team Cub Mentor
Team Cub Mentor
Posts: 16393
Joined: Fri Jul 02, 2004 9:52 pm
Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: IH 3414 plug gap

Postby Eugene » Wed Jan 03, 2018 12:16 pm

Pops140 wrote:Apparently the s is a code for a little longer thread pattern. Like 3/8 of an inch I hope that's not too long.
3/8" may be to long, the piston hitting the spark plug. I would find the correct spark plug.
I have an excuse. CRS.

Gary Dotson
Team Cub Mentor
Team Cub Mentor
Posts: 2975
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: IH 3414 plug gap

Postby Gary Dotson » Thu Jan 04, 2018 8:37 am

AC R45 and R45S would have the same length thread, the S stands for extended tip. My memory escapes me, at the moment, as to the letter designation for the 3/4" reach (threads) plug but I think you should have another letter on them. If the plugs you have are actually 3/4" thread, DON'T USE THEM!

User avatar
Don McCombs
Team Cub Mentor
Team Cub Mentor
Posts: 12925
Joined: Mon Feb 03, 2003 6:45 am
Zip Code: 21550
Tractors Owned: "1950 Something" Farmall Cub
1957 Farmall Cub w/FH
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A
Circle of Safety: Y
Location: MD, Deep Creek Lake

Re: IH 3414 plug gap

Postby Don McCombs » Thu Jan 04, 2018 9:00 am

The manuals for this tractor are available at Binder Books, 503-682-9328.
Don McCombs
MD, Deep Creek Lake

Image
Proud Member of Maryland Chapter 39

Pops140
Cub Star
Cub Star
Posts: 60
Joined: Mon Jun 26, 2017 9:00 am
Zip Code: 20659

Re: IH 3414 plug gap

Postby Pops140 » Thu Jan 04, 2018 6:08 pm

I have alot of books for this thing but I can't find the plug gap info.

Pops140
Cub Star
Cub Star
Posts: 60
Joined: Mon Jun 26, 2017 9:00 am
Zip Code: 20659

Re: IH 3414 plug gap

Postby Pops140 » Thu Jan 04, 2018 6:14 pm

Hey Gary they do have the same thread length your rite is an extended electrode. Do you think they will be alright.

Gary Dotson
Team Cub Mentor
Team Cub Mentor
Posts: 2975
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: IH 3414 plug gap

Postby Gary Dotson » Fri Jan 05, 2018 7:44 am

I don't think you'll have any issues with the extended tip, I've switched then back & forth many times, a tractor engine should have a lot of clearance.

SONNY
10+ Years
10+ Years
Posts: 2898
Joined: Thu Nov 09, 2006 11:26 pm
Zip Code: 61722

Re: IH 3414 plug gap

Postby SONNY » Mon Jan 15, 2018 5:42 pm

I think the extended tips were for just delivering the spark a bit deeper in the cylinder, which I would think is better to aid complete combustion! ---Just what I have been told eons ago! thanks; sonny
Image


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall / IH / CASE”

Who is online

Users browsing this forum: No registered users and 1 guest