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hh100 v. hm100


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3 replies to this topic

#1 jj69chev OFFLINE  

jj69chev

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Posted May 02, 2011 - 03:35 PM

can anyone tell me the difference between these two motors? Will a HH service manual help with the rebuild of a HM? Thanks in advance.

#2 DH1 OFFLINE  

DH1

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Posted May 02, 2011 - 05:13 PM

Bigest difference is HH are cast iron block heavy duty engine.
HM are aluminum block, with a cast iron cylinder liner, not as heavy duty as the HHs

HH = horizontal heavy duty
HM = horizontal medium duty
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#3 middleageddeere OFFLINE  

middleageddeere

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Posted May 02, 2011 - 05:28 PM

The HH100 has one more H in it's name. Lol...j/k

#4 mikebramel OFFLINE  

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Posted May 03, 2011 - 12:44 AM

Timken bearings compared to bushings, thicker crank pin, heavier rod
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