Briggs 19hp Intek-Surge/Hunting?

["Manic-Mechanic" 1,194]

I picked up this engine, was told it ran "excellent."

I installed it and it ran like crap!.

I asked the seller about it and he forwarded a video, first video.

I will begin the frustrating trouble-shoot on an engine that should be "excellent?"

No he wouldn't stand behind his word....(Market place)

 

I should have asked if he had a video before the purchase, but I trusted him.

I checked the governor settings first off, got this result in the second video.

Now I have to trouble-shoot an "excellent running engine?"

Just gets to be old real quick, everyone has their own interpretation of "excellent"

(Any thoughts greatly appreciated)

 

Edited August 6, 2021 by "Manic-Mechanic"
Tried to upload final video-failed

[WHNJ701 4,165]

Hopefully you got it real cheap, especially with the high hours on it.  You gotta remember these are junk throw away engines, lots of plastic parts. I would never buy a used one of these 

I got a free la series Deere from a neighbor had the typical cam shaft compression release issues, after I put the new cam in and with valve adjustment it still never ran right.  That engine only had 330 hours.

You can get a brand new drop in engine for less than 500 bucks and installing is about 15 minutes.  Which is what I did.  I even sold off the old engine for parts.  

Edited August 1, 2021 by jabelman

["Manic-Mechanic" 1,194]

Say,

   what engine did you buy? I would like to keep it plug & run if at all possible....The 17 that was in it ran, but I couldn't get it real smooth like it had worn counter weight bushings?

Yes. it was cheap.

I guess if go by spec numbers it should be pretty close to plug & run. If I have to modify maybe a better engine is worth the effort?

Edited August 1, 2021 by oldman

[WHNJ701 4,165]

Northern tool has them,  I bought mine from small engine warehouse.  Yes it is drop in no modifications

["Manic-Mechanic" 1,194]

Say, not for nothing, I held the choke and she ran excellent, lean issue? I tried another used carb but same thing. Must two dirty carbs? I can try the one off the 17? Or can it be the fuel pump? Fun.

I will make a mental note of the Small Engine Warehouse.

["Manic-Mechanic" 1,194]

Here, I approached this a bit more simply and began rebuilding carburetors.

1) Walbro- rebuilt off ebay, surged non-repairable

2) Nikki- rebuilt off 19hp engine, surged in need of machining on low idle port enlarge to .25, (time consuming requires purchase micro drills)

3) Walbro-from old factory 17hp with knock issue, success!

 

 

Edited August 6, 2021 by "Manic-Mechanic"