Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

Briggs 110988 engine help

4hp briggs 110988 vertical john deere

  • Please log in to reply
47 replies to this topic

#1 Trav1s ONLINE  

Trav1s

    Got points?

  • Senior Member
  • Member No: 5472
  • 2,603 Thanks
  • 3,750 posts
  • Location: Cedar Rapids, IA

Posted March 29, 2015 - 04:04 PM

I picked up a John Deere 21" self propelled mower over the winter with a 4 HP Briggs engine.  The model is 110988 and it has the Vacu-Jet carb with automatic choke.  The full spec number off of the engine is 110988-0303-01 and the serial number is 78022404.  According to JDParts the carb rebuild parts are NLA.  I am new to these small Briggs engines and not sure where to begin since JD does not have parts?  

Does anyone have a suggestion on finding parts to rebuild this carb?  Cross-references?


Edited by Trav1s, March 29, 2015 - 04:05 PM.

  • olcowhand, Lmiller3358 and holdenboy1960 have said thanks

#2 Bolens 1000 ONLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 12,686 Thanks
  • 17,204 posts
  • Location: Western NY

Posted March 29, 2015 - 04:11 PM

Is this what the carb looks like?

 

If so those parts are available

Attached Thumbnails

  • Untitled1.png

  • Lmiller3358, Trav1s and holdenboy1960 have said thanks

#3 Trav1s ONLINE  

Trav1s

    Got points?

  • Senior Member
  • Member No: 5472
  • 2,603 Thanks
  • 3,750 posts
  • Location: Cedar Rapids, IA

Posted March 29, 2015 - 04:28 PM

That does look like the carb.  I will snap a few pics and post them up.  Truth be told - the problem is most likely my ignorance of the Briggs and where to get parts.   :wallbanging:


  • Bolens 1000, Alc and holdenboy1960 have said thanks

#4 Bolens 1000 ONLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 12,686 Thanks
  • 17,204 posts
  • Location: Western NY

Posted March 29, 2015 - 04:29 PM

No worries, Always glad to help and share info.

I carry Briggs parts along with our other site sponsor Suberaben


  • superaben and holdenboy1960 have said thanks

#5 Trav1s ONLINE  

Trav1s

    Got points?

  • Senior Member
  • Member No: 5472
  • 2,603 Thanks
  • 3,750 posts
  • Location: Cedar Rapids, IA

Posted March 29, 2015 - 04:32 PM

Here are pics of the bare carb.  I am looking to do a complete rebuild and put this one to work if I can.  My poor old Lawn Boy needs some TLC and this one is self-propelled.

Attached Thumbnails

  • image.jpg
  • image.jpg
  • image.jpg

Edited by Trav1s, March 29, 2015 - 04:33 PM.

  • Alc and holdenboy1960 have said thanks

#6 Bolens 1000 ONLINE  

Bolens 1000

    DR. Bolens

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 7
  • 12,686 Thanks
  • 17,204 posts
  • Location: Western NY

Posted March 29, 2015 - 04:45 PM

Yep, thats the one I was thinking

Kits Run $21.50


  • Alc said thank you

#7 Trav1s ONLINE  

Trav1s

    Got points?

  • Senior Member
  • Member No: 5472
  • 2,603 Thanks
  • 3,750 posts
  • Location: Cedar Rapids, IA

Posted March 29, 2015 - 04:46 PM

Watch for a message from me.  Thank you for your help with this project!


  • Bolens 1000 said thank you

#8 dodge trucker ONLINE  

dodge trucker
  • Senior Member
  • Member No: 19314
  • 1,440 Thanks
  • 1,897 posts
  • Location: kankakee

Posted March 29, 2015 - 07:21 PM

besides if you buy parts for that machine as "Deere" parts prices are likely to be higher than buying them as "Briggs" parts

 

looks like the old 391681 diaphragm which are as common as day around here.   Should be able to get them in Stens or Prime line, even.  (will likely have a different PN, but their catalog usually references the original Briggs PN.   It'll tell which Briggs PN that it "replaces"

 

I did not look it up,  just looks like the same one on the old 92000 series (3-1/2 HP) Briggs.  That would be a Pulsa Jet carb (2 tubes that  protrude into tank)  vacu jets usually only had a single tube coming out of carb.

 

I remember back in my HS days I had a buddy that worked in a small engine shop--they were an Ariens and a Cub Cadet dealership. I remember him talking constantly about putting "warp kits" in that style of Briggs carbs/gas tanks.  I have not ever done so myself but have heard that the gas tank flange  on those, where the carb mounts would be out of square causing a vacuum leak.  Not sure what those "warp kits" would consist of.

 

I do remember the 11000 series like that seemed common for valve seats coming loose. Didn't you have that on your Snapper? 

I do remember having to peen a few of them in,  back when I played with push mowers more than I do now a days.


  • Trav1s and holdenboy1960 have said thanks

#9 Trav1s ONLINE  

Trav1s

    Got points?

  • Senior Member
  • Member No: 5472
  • 2,603 Thanks
  • 3,750 posts
  • Location: Cedar Rapids, IA

Posted March 30, 2015 - 03:08 PM

I figured that parts from Deere would cost more but did not know how to figure out parts info.  The knowledge on this forum is awesome.  Yep, it has two pickups from the carb into the tank.  The Deere book calls it a Pulsa-jet carb.

I do have a Snapper that lost a valve seat but don't know which engine it has on it.  Now that you say it, the engines look similar and are about the same age.  That Snapper has been a tank since I reseated the valve seat and put it back together.  Starts easy and runs well.


  • holdenboy1960 said thank you

#10 Bruce Dorsi OFFLINE  

Bruce Dorsi

    Old, but not dead -- yet!

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1525
  • 3,173 Thanks
  • 2,144 posts
  • Location: New Jersey

Posted March 30, 2015 - 07:20 PM

Yep, thats the one I was thinking

Kits Run $21.50

 

That sounds very steep, Brian.  ...What's in the kit?



#11 Bruce Dorsi OFFLINE  

Bruce Dorsi

    Old, but not dead -- yet!

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1525
  • 3,173 Thanks
  • 2,144 posts
  • Location: New Jersey

Posted March 30, 2015 - 07:26 PM

 

 

looks like the old 391681 diaphragm.

 

I have not ever done so myself but have heard that the gas tank flange  on those, where the carb mounts would be out of square causing a vacuum leak.  Not sure what those "warp kits" would consist of.

 

 

 

I agree on the diaphragm part number.

 

The "warp kit" consisted of a small diameter roll  pin (approx. 1/16" x 1/2") and a wafer-thin Teflon washer.

 

The roll pin fit into the small-diameter hole in the top of the tank, and the Teflon washer fit over the pin. 

 

The pin was only needed to locate the washer and keep it in the proper location.


  • Alc, superaben, dodge trucker and 1 other said thanks

#12 bhts OFFLINE  

bhts

    Bob's Lawn and Garden Tractors

  • Senior Member
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 945
  • 1,413 Thanks
  • 2,117 posts
  • Location: ohio

Posted March 30, 2015 - 08:15 PM

I would say a good cleaning and a new diaphragm kit and you should be good to go. I do stock the 391681 kit for $9.50


  • holdenboy1960 said thank you

#13 Trav1s ONLINE  

Trav1s

    Got points?

  • Senior Member
  • Member No: 5472
  • 2,603 Thanks
  • 3,750 posts
  • Location: Cedar Rapids, IA

Posted March 30, 2015 - 09:34 PM

Don't know how long this has been sitting unused.  The kit I am getting from Brian contains just about anything on the carb that is replaceable.  I am one who would rather do it right the first time.  In the end I will have $75 in a great mower that will likely last longer than me.  :smilewink:


  • Bolens 1000, Alc, superaben and 1 other said thanks

#14 superaben OFFLINE  

superaben
  • Senior Member
  • Contributor
  • Member No: 11204
  • 7,664 Thanks
  • 5,677 posts
  • Location: Shenandoah Valley, VA

Posted March 30, 2015 - 10:46 PM

Brian's price for a kit is not that far out of line.  If a diaphragm sells for $10, then all the extra gaskets, springs, metering needles, jets, packing, and all out to be worth the rest. 

 

Briggs lists the same kit for $24.

 

I agree on the diaphragm part number.

 

The "warp kit" consisted of a small diameter roll  pin (approx. 1/16" x 1/2") and a wafer-thin Teflon washer.

 

The roll pin fit into the small-diameter hole in the top of the tank, and the Teflon washer fit over the pin. 

 

The pin was only needed to locate the washer and keep it in the proper location.

 

That brought back good memories of selling those warp kits.  Part number 391413!

 

Ben W.


  • Bolens 1000, Bruce Dorsi and holdenboy1960 have said thanks

#15 Bruce Dorsi OFFLINE  

Bruce Dorsi

    Old, but not dead -- yet!

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1525
  • 3,173 Thanks
  • 2,144 posts
  • Location: New Jersey

Posted March 31, 2015 - 07:15 AM

Brian's price for a kit is not that far out of line.  If a diaphragm sells for $10, then all the extra gaskets, springs, metering needles, jets, packing, and all out to be worth the rest. 

 

Briggs lists the same kit for $24.

 

 

 

Don't mind me, guys!  .....I just get "sticker shock" at today's prices. :wallbanging:

 

This old fart remembers selling the 391681 diaphragm for $1.85, but that was quite awhile ago! :smilewink:


  • Trav1s, superaben, dodge trucker and 1 other said thanks





Also tagged with one or more of these keywords: 4hp, briggs, 110988, vertical, john deere

Top