Homelite 3" trash pump

Bkpigs · May 4, 2017

Got a Homelite 3" trash pump model 8s3-1r. I am needing a new primer bulb and am coming up short. The bulb slides over the fitting and the fitting is 3/4" diameter with a small groove for a ring to clamp it on. All the bulbs I am finding now are the ones that sit on the fitting. Any ideas where to look? I tried Napa, Ebay, and a couple of other sources to no avail.

Also, the pump calls for one pint of 30W oil per gallon of gas. I read in one place that the is equivalent to the stihl mixture since the motor oil would not have the additives that the stihl now has. Is that true?

Janicholson · May 4, 2017

Get a piece of fuel proof vinyl tubing about 2 inches long. Find a 3/4 inch core plug (welch plug) and
two good hose clamps. Push the plug into the hose about 1/4 inch and clamp it in place. Slip the other
end onto the carb, and clamp it in place. Squeeze the hose to pump the prime. Jim

jeffcat · May 4, 2017

I like how to make your own pump primer. Pretty slick. I hate thin
mixes and old school motor and gas mixes. All of my old saws and
generators come that era right up to today I run with a fairly stiff
mix. Take 3/4 of a gallon of hi-test and a bottle of sthil, or
husqvarna, ect. Two cycle mix. This will give you a 36 or so to one
mix. Much better for the lube factor in the engine. The synthetic oils
work fantastic and will not smoke. Run everything from a brand new
Huskvarna chain saw to antique Mc Culloch mac 15 ,650,740 etc.
Monsters. Never had any carbon build up problems at all ecause the
synthetic works so well. That 40 or 50 to one is for the birds and an
EPA joke!

Fritz Maurer · May 5, 2017

One pint to the gallon is a heck of a lot of oil. 16:1 (8 oz/gal) is the heaviest I ever mixed for anything. But you're right, two-stroke oil has come such a long way there's no need for that heavy mix anymore. In all my antique Homelites and McCullochs I run Bel-Ray MC-1 at 50:1 and now they actually idle! Hardly any smoke and the exhaust ports stay much cleaner. My H-D MX-250 was factory recommended at 20:1 with mineral oil. When I switched to MC-1+ in 1980 and leaned it out to 50:1 the difference was night and day. No longer did I have to carry spare plugs in order to get back home. Bel-Ray claimed ratios of 80:1 with jetting changes, but that's a little scary to me. 50:1 works beautifully in all my stuff.

Homelite 3" trash pump

Bkpigs

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Janicholson

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jeffcat

Well-known Member

Fritz Maurer

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