Briggs 31P777-0237-G5 #1 and #2

I scored a 2nd Briggs 31P777.  This engine is from the original owner and friend Jess, He said it was spewing oil out so much it covered the trailer he was pulling.  It has 200 hours on it.















I neglected to take a picture prior to pulling the cylinder head. This is a picture of the plastic shroud.

Need to measure the bore to be sure but the hope is that it is good and that the problem is something like a clogged breather.

My hope is that I am seeing hash marks in this picture? (this turned out to be big time wishful thinking)

The head is oily but not much in the way of deposits.

There is a plan A and a plan B here.  Unless the sale of parts from the first engine is very successful I plan to see if I can get this one running.  On the other hand if the first sells well they both go.

Thursday, January 22, 2015

My initial plan for this engine is to see if I can get it running and maybe stop the oil blowout.  To that end I rearranged the shop so I have a space near the front to work on small engines.  

Sunday, January25, 2015

Will need the following to reassemble.  Maybe

Briggs P/N 19356 (#18)

Oil Seal Protector Kit-Includes Sleeves Shown
Your Price: $13.55
*EMAIL TO ORDER
stoner1@iserve.net

Monday, February 2, 2015

I have the crank out of the block on 31P777 #1.  The the counter weighs are still on and will stay there till I wash parts for reassembly.  Other then that the only parts still together is the head.

Looking for Intek tips on MowBetter mower racing forum.

Tuesday, February 24, 2015

Jess called and said he needed a carb.  So I made one.  Turned out he did not have the fuel shutoff plugged in.  Later he was having governor trouble so I gave him the governor control plate off of #2 which was his engine.

Made 2 carbs into one today.  One had a stuck electric fuel shutoff, another had a too big 0 ring sealing the fuel inlet between the metal body and the plastic bit the float attaches to. Swelled or wrong part?  I came up short a main jet,  Not sure the jet was ever there.

	The brass bit in the center is the main jet  and it will fall out.

Everything cleaned up nice including the gaskets.  It seem the ultrasonic cleaning is a good way to salvage them if possible.

I also brought the major engine parts in to be washed.  Too cold to do it in the shop.  At this point I have washed the block so I can hone to break the glaze.  I got most of the filings left behind by the dremel when I ground off the one cap bolt.  It is going to be washed many more times after honing.   

Friday, March 6, 2015

The block took a lot of washing.  Switching to wiping with AFT did the trick.  Going to give it a final wash with brake cleaner prior to assembly.

New rod cap bolts are on the way.

Status Update

Three new additions.
Red Cub Cadet with a KT17 Series II.
Briggs 31P777-0237-G5 a naked engine which may go as parts on ebay.
MTD's 11HP briggs. --> now a donor tractor

Running   1st, 3rd, 4th Little briggs, Clinton PHD, Briggs 8HP, Briggs 6.5OHV,

In progress  Cooper Klipper, Winco Generator, AENLD,  ,  3Z107B SpeedAir, Go-Putz, Go-Putz Ariens RM1332 with Briggs IC 13HP,  682's KT17.

Terminal 2nd little Briggs with a bad exhaust valve guide

UnStarted 
2A016 with a suspected broken rod,
10HP Briggs,
Wisconsin S-8D without a carb or exhaust.

Other
A friend gifted me with a rear bagger for a mury sand several briggs starters.

An outing to the car wash

First I loaded both tractors.  The fan shroud came off the MTD and the seat pan of the 682.

Prior to leaving I adjusted the brakes on the 682 to make the parking brake work.  The MTD I just put in reverse.

The trip to the carwash was uneventful. No pictures. But I was happy to see that only one of the hydro valves is leaking if at all.

After I got back I put the 682 back together and drove it off the trailer.

This is the number off the MTDs 11HP briggs.

The once over at the carwash got all but the thick deposits.

This engine was traded away and resulted in getting the JD112.

The throttle cable is busted and there seemed to be little or no oil in the engine. But the oil in the 1 gallon container was still and maybe the stuff in the engine would not run out but it was at least very low.


.

ipod blues

I shoot most all my video using an ipod 4 touch.  It is now old enough that the battery only allows a few minutes of video capture.  That is why you are seeing fewer videos and most are done with few takes.

Now dropbox which is crashing when I start it.  So I setup iCloud to move the images and video to the PC.

MTD 137-332-078 aka Twirp

I purchased this little tractor from the the same guy I got the last briggs from. The first images are as I found it.

After arriving home.

It is surprisingly complete.  I wonder if the other front wheel rim looks as good.

Wednesday, January 14, 2015

It is cold outside so I made a video.

It turns out that the battery is called a powersport the same type as go putz uses.

Saturday, January 17, 2015

I yesterday I rebuilt the carb, cleaned the gas tank. and replaced the fuel lines.  It still did not go.  It was not cranking fast enough so today I rebuilt the starter. That did the trick.

It is still on the crude side with not throttle or choke cables that work.  But tomorrow I am going to take off the deck and test out the variable speed drive.  If it works I will keep it.

Monday, January 19, 2015

After making the above video I took the tractor for a 1/4 jaunt.  The engine ran great but the transmission did not respond to the lever.  To be useful the tractor needed more then 1 gear ratio.

After pulling the deck I could see the belts were rags and the moving CVT pulley was not moving.   This was too much so at this point it officially became an organ donor.

The engine is going into go-putz the RM1332 soon to become a RM1132.  It could be a bit underpowered and I would like to keep the RM original so when I get the 13HP fixed the 11HP will come back out.  But for now it makes one less tractor on the disabled list.

The front axle will be used to fixup the busted 4 wheel garden cart.

In hindsight this was a good experiance.  It would have been more fun if I could have saved the tractor but I did end up with a good engine and front axle for my cat.

Unless I run into another similar MTD this will be

THE END:  MTD 137-332-078

Wednesday, January 21, 2015
Instead of using the engine yesterday I traded it for a 2nd Briggs 31P777  complete with plastic.  This is a 200hr engine that started pumping oil out everywhere.  That engine will be rolled into the blog for the first engine.

S-8D

Wisconsin S-8D.

I am not starting on this engine but need a place to record info.

The carb is an walbro LME-73 

There is a copy or two of the manual in dropbox/manuals/wisconsin. 

Measuring the Cylinder and parts value

I set the bore gauge to the cylinder reject size of 3.567 in.  The cylinder was unbelievable consistently 1.5 thou more than this.

As much as I would like to keep this engine I have no need for it and a plastic shroud, muffler, and dip stick will be way more then the $10 I have into it now.   The logical thing to do is to ebay the parts.

The question now is do I just part it out or have some fun making it run first.  Expectations is that parts are worth about the same either way.  It will be interesting to measure the difference between the virgin cylinder bore and the worn area.

There prices based on what similar parts sold for on ebay

• 035 carb  $4.95 Economy Shipping
• 025-$69.99 crank list for more $10.00 Standard Shipping
• 012 stator
• <20 head
• 090 block $18.00 Economy Shipping
• 025 piston and rod $5.95 Expedited Shipping
• 075 flywheel  #698282 mod $12.95 Expedited Shipping
• g50 oil pan $12.65 Expedited Shipping
• 007 Push rods
• 025 cam shaft and gov
• 005 oil filler tube
• 025 pulley $11 shipping
• 010 head bolts $6 shipping
• 010 other bolts $6 shipping
• 020 carb linkage $6 shipping
• 
  

They total to $348.

There may be parts I did not think of and ones that are in bad shape and cannot be sold.