Hb or HP 4/stroke??  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> Hb or HP 4/stroke??
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Hb or HP 4/stroke?? - 12/17/2001 1:54:58 AM   
FIVESQUARE



Posts: 625
Joined: 12/9/2001
From: little rock, AR, USA
Status: offline 		Anyone ever heard of the HB or HP 4/s
What sizes do the come in??
It sounds like a rotory when runniung.
The glow plug is on the side of the cylinder.
Thanks in Advance
5

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HP engines - 12/17/2001 4:47:11 PM   
Taildrager


 

Posts: 921
Joined: 12/5/2001
From: Oregon, IL, USA
Status: offline 		mecoa makes a rotary valve 4 stroke engine, do not know what size though, as ther web site didn't list sizes.

< Message edited by Taildrager-RCU -- Dec 17 2001 4:48PM >

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HP 4-strokes - 12/17/2001 11:30:22 PM   
turbo-RCU


 

Posts: 29
Joined: 12/17/2001
From: West Tx
Status: offline 		HP makes a .21 and a .49 4 stroke. I think there are two types of each one available. It seems there is a BB and plain bushing valve option. RJL/ Mecoa has production rights. They are older designs, very quite, but down in the power dept.( by todays standards). HP is a high quality 2 stroke and I' sure the 4c follow suit. turbo

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HP .49 - 12/18/2001 3:43:44 AM   
Hobbsy



Posts: 10510
Joined: 12/2/2001
From: Colonial Beach, VA, USA
Status: online 		The .49 has substantially more power than it did originally, Mr. RJL tightened up the tolerances, raised the compression and I think opened up the intake port a little. Turbo was right about the rotary valve, you can get it with a bronze bushing or bearing, don't know if it is ball or tapered roller.

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       Post #: 4

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