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Is this L3800 an HST? Because the wiring is different than the non-HST, and both are covered in the WorkShop Manual. To find the short, unless there is an obvious burn mark, could mean sectionalizing the harness(es) to fault isolate.

Thinking that while waiting for seals to arrive it would be good to read up about seal and o-ring tricks - such as using hot water to make some seals more flexible - and how to not cut seals while installing.

Does anyone know for the safety switch on the clutch of an L 3800 hydrostatic One side of clutch switch goes to ground, one side to HST switch - all part of Operator Present circuit on HST machine. Our confusion is that the above is not true for a D with manual transmission. I think it’s the...

I'd get a small clawed parts grabbing tool and get the stick out of there. If it gets chewed up it will clog somewhere and that's bad.

Thread chasing or tapping should be done by hand so that one can feel when to back off. The tap or chase should be held by a handle made for the cutting part. The routine is to start and make sure the tap is in sync with the thread cutter, turn forward carefully a partial or full turn, and then...

My new plan, have big towel close by that I toss onto intake port and choke it. The engine when running will suck that towel in and eat it. Then it's tear it apart to clear valves and such. Check other above suggestions. Good progress!

By the way, it is critical to tighten head bolts in sequence shown in WSM; do them in stages; and have the bolt threads oiled. One of the few places that really need the torque wrench.

In general, How old is the battery? Take battery out and have free load test performed. Conductors to battery, plus and minus, both battery end and tractor ends. Clean all four. Clean battery terminals. Check conductors for corrosion - may also be corroded inside of cables due to age of machine...

Also tried smacking starters with hammer, both doing same exact sound and manner Knowing that engine spinning fine and can't get starters to spin, move on with gear assembly Some "why" about the assembly lube. It does come in a bottle marked "assembly lube" and you chance seizing the engine if...

Rig up starter to have power, spin engine and see how it sounds WHOA! Maybe think about this. Have all moving surfaces been oiled or had assembly lube applied? The starter is sized to turn much more mass than what is there now. Maybe better to hand turn now and leave starter for later.

You're about ready to start needing assembly lube.

Comments, not criticism. Torque wrenches should be calibrated before use. Harbor Freight had/has? an electronic torque readout tool if needing a low-cost way. Have oil passages been cleaned out for bearings? Clean engine oil applied on the bearings? Bolts coated with oil and finger tightened...

I have done this by putting the shaft and a come-along between a tractor and truck. Yours may take the tractor pull. In any case, do not use rope, but use chain. Rope stretches and will recoil, along with anything tied to it, both ends. I believe that I would check the cost for a new shaft...

By your picture I see that you also noticed the pitting on the cylinder head. Wonder if that could be caused by coolant getting in. Otherwise, nice job on cleaning up!

Exactly what the other fellows are saying. When the dowel is hit, the force will transfer through the grease. Grease should flow under the bearing, and then out between the bearing and crankshaft. A rag around it will stop a grease explosion from hitting you. If preferred, soak the area between...

It's called "pre-tin." Generous with flux to block oxygen. Get a layer of braze material on the cast iron. Then braze the patch to the cast iron.

The tears start at the cuts made by the cutting wheel. Imagine adding heat to the pan as a thermal expansion of the entire pan. The sides of those cuts are moving away from each other, and the tension exceeds the strength of the metal. Another approach might be to use an oversize patch, drill...

A green fusible link would be rated at 20-25 amps. BUT, I would never depend on a picture to represent the true item. Example: Today I received a drywall texture sponge which showed in the picture as two each, big as a man's hand; what I got was one and it was the size of a biscuit. More to the...

Fusible links are a legacy device which act as fuses. Basically a conductor of smaller size, with special insulation so as not to burn, and will melt at over-current, protecting the main conductor. Now they come with their own connector and are colored to indicate their rated amperage. Good...

Some thoughts. Beads show that there is not enough heat. Try preheating the pan in the oven and see if that helps in your test case. Cast iron needs to be clean. When you get to the engine, you may need to bake out the engine oil and other contaminants prior to grinding. Rods will work better...