Challenge Xtreme who makes the engine for the 3.5 hp ?
It has been requested that I fix a 3.5 hp lawn mower, sone one has run without topping the oil, so con rod needs replacicing also top bearing, so far, may need new piston, any idea where I can get the bits, the job is easy, who to supply me the parts is the question.
New top bearing = new crank case, whoever makes it. In the case of Challenge, it could be Tecumseh, Briggs & Stratton, or (more likely) a Chinese Honda rip-off. Look on the block casting for a white label. If it's a chinese engine, it will have a sticker on it with an obvious Chinese manufacturer name - in which case, forget about sourcing parts. IF you can find anyone willing to order them, it will take MONTHS, and will cost more than a new engine (which you can get for £85 new in a box).
A re-engine will be MUCH simpler, and cheaper. Any standard engine up to 5 HP will bolt straight on - just check the crankshaft length. A Briggs & Stratton 'Classic' 35 is an obvious choice - £20 off ebay for a running one.
phil_saunders(a)bigfoot.com
Phil Saunders
September 2012
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lawn mowers.