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Search: Posts Made By: mglavin
Showing results 1 to 6 of 6
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Forum: Gas Engines
01-04-2007, 08:53 PM
Replies: 151
Views: 20,733
Posted By mglavin

RE: 3W 100 quits in Knife Edge

Sounds like you're on the right track again, if the pop-off pressure is close to the fuel pressure (6-7 psi) you got problems.

You mentioned psf again, don't you mean PSI = ponds per square inch?
Forum: Gas Engines
01-04-2007, 10:34 AM
Replies: 151
Views: 20,733
Posted By mglavin

RE: 3W 100 quits in Knife Edge

Possibly the bicycle air pump is not accurate enough to determine the actual pop-off pressure realized of the well seasoned carb assembly. See the link below for info on pop-off pressure and related...
Forum: Gas Engines
01-02-2007, 11:49 PM
Replies: 151
Views: 20,733
Posted By mglavin

RE: 3W 100 quits in Knife Edge

It looks like you have the idea. You’re looking for the inlet lever to be flush with the pocket floor while the fuel inlet needle is completely seated. Remember this needle is under pressure and...
Forum: Gas Engines
01-02-2007, 04:33 AM
Replies: 151
Views: 20,733
Posted By mglavin

RE: 3W 100 quits in Knife Edge

There is NO packing on the needle screws if they’re loose; air leaks are likely IMO.

Was the fuel dripping previously, you didn’t mention same.

Your dripping fuel phenomena points to...
Forum: Gas Engines
12-29-2006, 06:50 PM
Replies: 151
Views: 20,733
Posted By mglavin

RE: 3W 100 quits in Knife Edge

Fuel puddling occurs when vaporized fuel comes out of suspension, liquid pools of fuel can amass in the crankcase and sometimes the intake track/venturi. A rich idle mixture exasperates the...
Forum: Gas Engines
12-28-2006, 02:16 AM
Replies: 151
Views: 20,733
Posted By mglavin

RE: 3W 100 quits in Knife Edge

Walboro carb, right? If the engines goes lean at part throttle I’d suggest there is some dirt, debris or obstruction of the idle main channel/pocket or more specifically the primary, secondary or...
Showing results 1 to 6 of 6


 
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