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shooter1951
09-02-2011, 05:09 PM
We have an older Scag Turf Tiger with the Command 25 HP on it that is on it's last leg. We've had several different problems with it the last year or so and it now is losing a lot of oil. Also can't keep it running for any period. If we change out the engine any suggestions best place to get one? Also how tough will it be to change out? Thanks

Restrorob
09-02-2011, 08:12 PM
There are all sorts of on-line stores to get replacement engines, Posting the spec number off your's would be a start to finding a exact replacement.....

shooter1951
09-02-2011, 09:44 PM
There are all sorts of on-line stores to get replacement engines, Posting the spec number off your's would be a start to finding a exact replacement.....

Thanks Rob, I'll get the number and get it posted.

shooter1951
09-03-2011, 01:09 PM
We have an older Scag Turf Tiger with the Command 25 HP on it that is on it's last leg. We've had several different problems with it the last year or so and it now is losing a lot of oil. Also can't keep it running for any period. If we change out the engine any suggestions best place to get one? Also how tough will it be to change out? Thanks

Just talked with my son this morning about the problems he is having with the Scag. He seems to think there are actually 2 separate issues with the mower. One is an oil leak problem and the second is losing power to one cylinder. Last year is started blowing some oil out the rear, not sure if it is a head gasket or what but it seems to hold oil when it is about a half quart low or so. After he gets through the season he figured he would either tear into it and rebuild/replace gaskets or replace the engine depending on what the 2 issues end up being. Since it has been really dry/hot he is not mowing as much as normal. Also he is only doing a few yards at this time so it is not getting used like normal. A couple months ago he noticed he was losing one cylinder intermittedly. He said it seemed like the plug was fouling out with excess gas. This could happen when moving from one job to another or just start for no apparent reason. He could let the mower sit for a couple hours come back and it would run. okay for awhile. Other times he could get the cylinder back by driving and turning in the yard, but in no set pattern like turning right or left would fix it. The mechanic he talked to seemed to think it could be a coil getting ready to go out. Son wondered if maybe it was a bare wire someplace and the moving from yard to yard was causing it to move and ground out. Anyone else have similar problems or suggestions? Thanks again. :)

Restrorob
09-03-2011, 07:30 PM
Son wondered if maybe it was a bare wire someplace and the moving from yard to yard was causing it to move and ground out.


Not likely the case, Both coils are tied together with one ground lead. There are other wires in the engine wire harness with this lead and all are tie wrapped to the intake manifold, If the ground lead outside the flywheel cover were to short to ground both coils would drop spark killing the engine.


Since he's not mowing much right now a coil test should show if one is weak, Close to or right on reject specs would be questionable.

The part number is stamped on the coil it's self;

http://i107.photobucket.com/albums/m314/Restrorob/Kohler/KohlerTwinCoilTest.jpg

shooter1951
09-03-2011, 09:46 PM
Not likely the case, Both coils are tied together with one ground lead. There are other wires in the engine wire harness with this lead and all are tie wrapped to the intake manifold, If the ground lead outside the flywheel cover were to short to ground both coils would drop spark killing the engine.


Since he's not mowing much right now a coil test should show if one is weak, Close to or right on reject specs would be questionable.

The part number is stamped on the coil it's self;

http://i107.photobucket.com/albums/m314/Restrorob/Kohler/KohlerTwinCoilTest.jpg

Thanks Rob, I'll let him know.