Recent content by Ihategrass

Hi Ilengine, I can only report matters as found. It is interesting that Briggs specify resistor plugs across their range of engines as does Dempsey in his book about repairing Briggs engines. If you've never used one just wonder what service you've been giving your customers. Just out of...

Hi Ilengine, Not so. The replacement plug fired perfectly in my old compression jig. You don't see these very often these days but they were commonly available at one time. Screw in the plug, crank up the air pressure, (150 psi), and watch the spark through the quartz window. That's with dry...

Hi Everybody, At the end of last season I serviced my ride on before storing it for the winter. The 12.5 flat head engine is some 20 years old and still had the original Briggs spark plug. I changed the plug for a new one. The local store sold me an "ALM 19" showing me that their interchange...

Hi Everybody, Thanks for all the received wisdom. However, it does seem that nobody has yet answered the direct question about the factory spec for the valve timing. Regards, Len

Hi Everybody, My engine is a vertical shaft 12.5 hp side valve. Model 28T707, Type 1180-E1, Code 020211ZD. It will not run and backfires through the carb. Can anybody tell me what the what the valve timing should be? I don't mean aligning the dots on the crank and cam gears. I mean the...