Murry 17.5 B&S Twin leaking from the bottom pan gasket

[troy-built]

if it's still working good and running good, it's definitely worth the effort.

Briggs and Stratton 42A707-2238-E1 Parts Diagram for Sump

Briggs and Stratton 42A707-2238-E1 Sump Exploded View parts lookup by model. Complete exploded views of all the major manufacturers. It is EASY and FREE

www.jackssmallengines.com

the sump gaskets for this motor come in .005" thick, .009" and .015" thick.

Oil seal part, Briggs and Stratton 291675S

Thank you, That is very helpful.

 

[troy-built]

That's how i did mine. I would also change the crankshaft seal, cheap insurance.

Oh yea I wouldn't go that deep and not change that seal but thanks for the suggestion.

 

[troy-built]

if it's still working good and running good, it's definitely worth the effort.

Yes it runs awesome. That's the only reason I'm even thinking about repairing it.

 

[troy-built]

I've got a Full service manual for the Twin i can upload/PM you some pages if you need.

Good morning. Could you send me the pages that cover how they recommend changing the gasket? Also is it better to take off the pulleys before or after you pull the motor?

Many thanks for your help with this.

 

[troy-built]

The hardest part is getting the engine pulley off to get the engine out of the mower.

Sorry I just noticed this. So you have to remove the pulley before you pull the motor?

 

[bertsmobile1]

Varies mower to mowe but most only have a 2" hole for the PTO shaft and 4" to 6" pulleys
Flywheel can stay on but pulleys usually have to come off.
In any case they have to come off in order to get the sump off but it is a lot easier to remove if not in the mower

 

[troy-built]

Varies mower to mowe but most only have a 2" hole for the PTO shaft and 4" to 6" pulleys
Flywheel can stay on but pulleys usually have to come off.
In any case they have to come off in order to get the sump off but it is a lot easier to remove if not in the mower

Got ya. Are the threads on the mower right hand or left hand?

Many thanks

 

[troy-built]

I've been doing some reading and I found this interesting.

Although the original gasket had a weak spot wear it blows out. If you use some silicone when you put the new gasket on, its unlikely it will ever fail again. But if you just replace it, you should get 15 years out of it. Once the engine is off the chassis, it is very easy to replace the gasket. Opposed twin Briggs are great tractor engines and that gasket is the biggest known thing to go bad, otherwise these are very reliable engines.

 

[Scrubcadet10]

Got ya. Are the threads on the mower right hand or left hand?

Many thanks

On mine it was righty tighty, lefty loosey.

 

[troy-built]

On mine it was righty tighty, lefty loosey.

That's what I thought but I learned a long time a go on a motor of any kind it's better to ask just to be sure. Thanks

Oh by the way could you get me the pages out of your manual that's tells how they suggest to set up the float on the pan gasket?