18HP B&S Twin Build.

[HellSpawn]

Going to be rebuilding my other 18hp Opposed Twin.

I have a couple questions for anyone capable of answering them.

This particular twin either broke a rod (no holes in block however) or dropped a valve seat on one cylinder (no compression whats so ever.)

1. I have a vertical shaft O.T. that seems to be the same year, Would these parts be interchangable? Vertical to Horizontal.

2. Is it possible to find aftermarket performance parts for these engines? (I want this engine to be able to hold up to some of my evil plans.)


Said evil plans will be outlined in another post later on. (Depending on if I can rebuild this motor.)

 

[solomon]

Generally The pistons and valves are interchangeable.

 

[HellSpawn]

Rods?

 

[solomon]

I don't believe so because the vertical rods were usually designed without the slots for an oil dipper. Although you could make it work i bet. But you should never use rods from other engines. But hey i do it all the time if it makes you feel better.

 

[Kenny_McCormic]

Being a mower engine, I would assume billet rods and flywheels are available. What is the model number on both? One or both might have pressure lubed rod and main bearings.

 

[HellSpawn]

I'll pull the numbers tomorrow, long day of fishing.

 

[Rotore]

Rods?

most likely yes

I don't believe so because the vertical rods were usually designed without the slots for an oil dipper. Although you could make it work i bet. But you should never use rods from other engines. But hey i do it all the time if it makes you feel better.

most twins have pressure lub so they probable are interchangable.

 

[Rotore]

BTW go on heymow and troll around for a bit you'll bump into a site with aftermarket parts these briggs are very popular

 

[Rotore]

http://www.performanceracingpartsbyhitch.com/ heres a start