Posted by joe csuti on September 07, 2013 at 03:08:08 from (4.248.75.65):
In Reply to: 6.5 vs 6.75 hp briggs? posted by George Marsh on September 07, 2013 at 01:19:43:
There could be a difference in shaft size/diam depending on what briggs was offering/had a special price on or what mower mfg specified when eng ordered,it's not uncommon for eng in same/close hp range to have different length/diam shafts.
Get the mod/spec numbers of bad eng & used eng,goto link below,look up mod/spec# of each eng,see if crank the same pn for both eng,if crank shaft different length,diam or made differently the pn's will be different,this is at least a start.
Even though your son lives 1-1 1/2 hrs away it might be wiser to go pickup mower/have him drop off at your house & check out eng before buying a replacement,if your son is anything like mine & has little/no mech knowledge & two left hands any type of mech problem can quickly turn into a mountain when it's only a mole hill depending on what he considers eng blowing up,fix may be as simple as valves need an adj if an ohv eng or a leaking/blown head gasket,stuck breather valve,leaking float valve in carb dumping gas into crankcase raiseing oil level in crankcase causeing eng to smoke or some other simple fix.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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