Point Gap for older B&S engine

BoborAnn

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I have a 130200 5 HP Briggs & Stratton Engine made about 1977 on a rototiller and I'm changing the points and condenser. I've searched everywhere and cannot find the spec for the Gap Can somebody help Thanks Bob
 

Red

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BoborAnn said:
I have a 130200 5 HP Briggs & Stratton Engine made about 1977 on a rototiller and I'm changing the points and condenser. I've searched everywhere and cannot find the spec for the Gap Can somebody help Thanks Bob
20 to 25 mm works with most small engines I have used
 

Dan (archive)

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I have a 130200 5 HP Briggs & Stratton Engine made about 1977 on a rototiller and I'm changing the points and condenser. I've searched everywhere and cannot find the spec for the Gap Can somebody help Thanks Bob
In the absence of other information, use a matchbook cover as a feeler gauge and I bet it'll work just fine!

Dan
 

Jim R.

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red said:
20 to 25 mm works with most small engines I have used
whoa.. that's gonna take some seriiously high voltage to bridge that gap. ..025 inches is proabably more like it.
 

Red

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Jim said:
whoa.. that's gonna take some seriiously high voltage to bridge that gap. .025 inches is proabably more like it.
oops. that what I meant. forgot the decimal.:0
 

Backlash

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I don't think a one inch point gap will work. :) Usually .020 gap will do, if I remember from 35 years ago. 294628 used to be the part # for the points on a Briggs. Another forgotten part number would get you the little phenolic plunger that pushes the points. There is a line around the plunger that indicates when it is worn down and needs replacing. While turning the engine, if the line disappears into the block's bearing boss, then replace the plunger rod, as it affects the engines timing events. Also, the first two digits in the engine number represent cubic inches displacement. End of 70's flashback....

RJ
 

Backlash

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Voltage doesn't "bridge" the gap. The OPENING of the points collapses the coil's field, causing it to fire the plug. The gap in this case determines ignition timing, and also point dwell, which determines coil saturation, which affects coil output.

RJ
 

Jim R.

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Backlash said:
Voltage doesn't "bridge" the gap. The OPENING of the points collapses the coil's field, causing it to fire the plug. The gap in this case determines ignition timing, and also point dwell, which determines coil saturation, which affects coil output.

RJ
You're right - I was thiniking plug gap.
 

Stormin Mormon

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Been .020 inches for everything I've ever done on B and S.

Plug gap is 025 or 030, can't remember.
 

George E. Cawthon

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BoborAnn said:
I have a 130200 5 HP Briggs & Stratton Engine made about 1977 on a rototiller and I'm changing the points and condenser. I've searched everywhere and cannot find the spec for the Gap Can somebody help Thanks Bob
I have that engine on a rototiller bought in '78.
The book says the point gap is 0.020" If you
need any more info, email me.
 

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