I have a Ferris zero turn with a Briggs 30hp Model 49M977-0114-G5 motor on it. Its about 5 years old and has less than 200 hours on it. At 100 the oil sump pan gasket blew out and I changed it and it was fine for over a year. Then today I had been mowing for about 10 minutes and it messed up on me. So I drove it in the garage and there was oil coming out from somewhere maybe the oil sump pan again or above it, couldn't really tell where it was coming from. The motor had no power and would make a noise once in awhile like something pinging inside. So I did a compression test and had 150 psi on the first cylinder and then 0 on the second. Put a screwdriver in the spark plug hole and turned the motor over by hand and can tell the connecting rod is broken or something, piston does not move. So should I order a new motor or have this one repaired? Have no idea what it would cost for repairs. I have the Briggs 49M977-0114G5 and looked online and chatted with a place that came up and they said this motor is no longer available and I need to go to the Briggs 49T877-0004-G1 instead. Anyone know anything about this or if Briggs has made any improvements with this newer model? The original one was a 30hp and this one is advertised as 27hp. Any advice appreciated.
The only important thing is to get an engine with the same PTO shaft diameter shape & length.
After that is is just a matter of juggeling things to fit.
Check out the price of similar sized engines at all of the surplus engine wholesalers
Repower, Small Engine Supplies, Small Engine Warehouse & the Surplus Centre
Any engine with a 49 ( Cu inch ) as the start of the model number will go in provided that the PTO shaft is the same.
After that everything else is just a swap over as the short blocks are all the same in each engine displacement .
Pull your engine out and have a good look at it before you decide to scrap it.
If the bore is good then you are most likely up for a rod, piston & gasket set.
Download your IPL from Briggs & see if undersized rods are available &/or oversized pistons are available.
In most cases the Hp difference is nothing more than the governor spring , main jet & restrictor plate on the inlet.
All of the same capacity engines have the same bore, stroke & compression ratio .
Engines with smaller generators are cheaper but yours will drop strait on .
#3
Oliver Douglas
If you are going to rebuild it, you can save money. At any shop an entire motor is always cheaper than a rebuild.
