B&S 18.5 engine prooblem

waltjr1 · Jun 10, 2018

Briggs & Stratton 18.5 HP OHV engine has blown. Would it be wise to rebuild or purchase a new engine and it I would purchase a new engine where would be the best seller to purchase it from?

t1 · Jun 10, 2018

To determine if it?s rebuiladable, you need to tear it down, get the service manual and specs to make sure it?s able to be rebuilt. Sometimes
there is internal damage that can not be repaired, and you won?t know until you open it up. Doing it all correctly involves micrometers and some
special tools.

If all your external parts are good, such as carb, flywheel, coil, shrouds, and heads, consider a short block.
Will come with all new internal parts and block assembled. You just add all the missing outside pieces from your old engine.

A new engine is the most expensive option usually, but if everything else is worn out out too, sometimes is the better way to go.

Best place to get any of those depends on your location. You can get them from many places on line, even direct from Briggs and Stratton, but
there will be freight costs in most cases. There might be even if you got it local through a repair shop though.

I usually repair my stuff and get things locally, and they give em decent deals, so i?m Not much help with where the best place for you would be.
Hopefully others can help with that.

grizz02 · Jun 10, 2018

have you looked on e-bay bought a honda 6.5 new for 180.00 might be worth a look

MSM · Jun 10, 2018

Might try smallenginewarehouse.com You didn't specify if yours is horizontal or verticle, but they list
two 18.5 hp briggs verticles one is $495 the other is $695 Might be worth a phone call....

Steve@Advance · Jun 10, 2018

If it came loose internally, probably not rebuildable. Only an autopsy will tell.

Last one I bought was from Ebay. I think it must have been a factory reject, out of the box. There was an assembly problem with the carb/governor linkage. Easy fix, still running great.

Texasmark1 · Jun 11, 2018

I bought 2 replacement BS V twins at 18 and 20 hp for that kind of money on ebay. Both seem to be leftovers from a production line; one has stickers, the other doesn't. Been about 2 years now and they work perfectly. Bolt pattern on today's mowers is setup on a 10" bolt circle allowing single cylinder and V twins to occupy the same mounting platform. Attachments for fuel and electric are in the same place on both types of engines.

Only difference is that if you are going from a single to a twin, you need to replace your throttle and choke cables. The single feeds on the left side and the V twin around in front requiring a longer cable.....ebay had that too listed for a JD L120 which carried the V twin. The 18 went into a JD L110 replacing a single 17.5 and the 20 went into a Husqvarna 46 replacing a Kohler Courage 20 hp single. Used the same ebay purchased throttle/choke cable for both. Mounted on the plastic side of the mower within easy reach with my left hand.

B&S 18.5 engine prooblem

waltjr1

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t1

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grizz02

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MSM

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Steve@Advance

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Texasmark1

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