Author Topic: 3.5 Petteroid stories  (Read 4579 times)


  • mkdutchman at gmail dot com
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3.5 Petteroid stories
« on: June 25, 2008, 09:20:10 PM »
Dunno about any of the rest of you, but I'm in the mood for some 3.5 Petteroid stories, I'm just curious how people made out with them. Don't necessarily have to be negative or positive but if you bought a Petteroid and/or worked first hand on one of them, what is/was your experience with them?

Here's the condensed version of mine

The boss here at work bought a 3.5 through Joel Kuch some time ago, we stripped it down and did a general overhaul on it. We got one or two parts through Joel, but most of the time we were dealing with Ashmawegh. We got it running but it's chronic smoking and runaway problems started getting to us and we ended up buying a 6/1 Metro from Sam Crosby. worked great from the getgo so the 3.5 is to this day still sitting in the shop.


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Re: 3.5 Petteroid stories
« Reply #1 on: June 25, 2008, 10:03:04 PM »
same story here and same dealer and same junk/ bought another one from mike in n.c(tell me I am stupid) but it was made by some one else and runs like it should// so far so good// the junk one is just junk/ every time I ran it. something broke,fell off or leaked//sid
15 hp fairbanks morris1932/1923 meadows mill
8 hp stover 1923
8 hp lg lister
1932 c.s bell hammer mill
4 hp witte 1917
5 hp des jardin 1926
3 hp mini petters
2hp hercules 1924
1 1/2 briggs.etc


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Re: 3.5 Petteroid stories
« Reply #2 on: June 26, 2008, 02:01:56 AM »
Had one painful experience with a genuine single cylinder Petter.

It was hard to start engine (that was before we used a B&S Petrol to start it :o) and one day it pre-ignited and ran backwards until the next compression stroke.  The crank handle was whipped out of my hand and firmly planted onto the inside of my left knee - that hurt.  X-rays showed no bone injury and physo said it looked good under examination.  Took 6-12 months before my knee came right, before the limp went away and I could walk for longer than 4 minutes at any time before resting.  That engine still sits where it was last used and has been replaced with a CS3-1.

If I knew then what I know now.  All it probably required was decarbonation.  Will do that one day, it's been on the list for 3yrs.


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Re: 3.5 Petteroid stories
« Reply #3 on: July 09, 2008, 03:03:05 AM »
i got a 2.8 hp version of the mini petter, and have had absolutely no issues with it as all
no vibration,
no smoke
no leakage
incredible fuel economy
never a runaway,
never a kickback

course it is still in the crate! :)

sorry, i couldn't help myself

bob g
otherpower.com, microcogen.info, practicalmachinist.com
(useful forums), utterpower.com for all sorts of diy info


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Re: 3.5 Petteroid stories
« Reply #4 on: July 09, 2008, 03:50:20 AM »
I have agreat one too Bob but its big petteroid no noise at all from it no oil leaks nothing to even lend hint that a 400 pound diesel engines is wrapped up in plastic waiting for the day lol
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