For The "Blower-Heds" On This BB.....

[rwcarpet]

I was talking to a service guy today that has worked extensivly on Powermatics, and he says that the PM 47 blower should be run at about 2800 rpm and 14 at the guage for maximum performance. What do the blower pros say?

Also, what would be the best rpm AND HG setting for the genesis 59 blower that is 1 to 1 with the engine rpms?

Things I should really know......but don't.

 

[Dolly Llama]

I was talking to a service guy today that has worked extensivly on Powermatics, and he says that the PM 47 blower should be run at about 2800 rpm and 14 at the guage for maximum performance.t.

Powermatic/Legacy is a 45 blower, Ar-Dub
Mostly Roots blowers were used, but there were a couple/few years they dropped in Sutorbuilts

they came from the factory set at 11HG and depending what year, 2900 /3100 RPM was the recommended engine speed
as you know, it's direct coupled, so blower spins whatever the engine RPM is

I believe max specs for the Roots 45 is 15 hg /3600 rpm
We run at 14 hg/3100-3200 RPM


donno about the big Genny
but a 59 blower will move a lot of air, so if single wanding, it wouldn't take much RPM ..I'm "guessing" 1500 or less
For dual wanding, i'd crank it whatever manufacture max specs are for the blower ...I'm "guessing again" that would be in the 14hg/ 2600-2800 rpm range???


..L.T.A.

 

[bob vawter]

even tho i was only running my truck engine at about 1600 RPM.........i suppose the 47 blower was spinning at about 1900 MAYBE 2000 RPM......
on complete lockdown of the waste tank including the spring relief valve...( duct taped shut )
i could easily hold 16 Hg........

madder a fact...CRASH posted a picture of his vac guage at....16 Hg....when he first bought my unit!

 

[Larry B]

even tho i was only running my truck engine at about 1600 RPM.........i suppose the 47 blower was spinning at about 1900 MAYBE 2000 RPM......
on complete lockdown of the waste tank including the spring relief valve...( duct taped shut )
i could easily hold 16 Hg........

madder a fact...CRASH posted a picture of his vac guage at....16 Hg....when he first bought my unit!

Same here Bob but ours is at 18Hg.

 

[AshleyMckendree]

even tho i was only running my truck engine at about 1600 RPM.........i suppose the 47 blower was spinning at about 1900 MAYBE 2000 RPM......
on complete lockdown of the waste tank including the spring relief valve...( duct taped shut )
i could easily hold 16 Hg........

madder a fact...CRASH posted a picture of his vac guage at....16 Hg....when he first bought my unit!

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[Larry B]

Where the SG runs all day every day

.... while eating raw fish

 

[bob vawter]

ya Larry B.......these guys don know squawt about Genies......
charts an' lawn mower engines....MAYBE?