Zenoah three bearing?
Mercury94 created the topic: Zenoah three bearing?
Can a RCMK crank case bearing be used in place of the seal on the output end of a Zenoah? If so what benefits would be gained or lost?
Please Log in or Create an account to join the conversation.
- Mercury94
-
Topic Author
- Offline
- Posts: 208
- Karma: 2
- Thank you received: 14
Scott replied the topic: Re: Zenoah three bearing?
Have done so for YEARS ... Zenoah has made a double sealed bearing that is factory used in the PU aircraft engine. Yes the DOUBLE sealed rcmk bearing will work fine.
Advantage is a more rigid and better supported crank, less vibration generally ... a win win IMO
Advantage is a more rigid and better supported crank, less vibration generally ... a win win IMO
2 stroke Engine Tech of 30+ years, Prop tweeker, Chronic tinkerholic, Home of Motor Heads RC Racing Engines ...
8 time NAMBA National 6 lap heat racing record holder.
Please Log in or Create an account to join the conversation.
- Scott
- Offline
- Devoted Enthusiast ... MGB Technical advisor
- Posts: 1254
- Karma: 27
- Thank you received: 23
Mercury94 replied the topic: Re: Zenoah three bearing?
Would it be possible to use the RCMK brass seal plate?
Please Log in or Create an account to join the conversation.
- Mercury94
-
Topic Author
- Offline
- Posts: 208
- Karma: 2
- Thank you received: 14
Scott replied the topic: Re: Zenoah three bearing?
Mercury94 wrote:
No reason not too .. will fit just fine.
You will however need to shorten collet so it does not contact inner race of outboard bearing once going to 2 bearings on PTO side
No reason not too .. will fit just fine.
You will however need to shorten collet so it does not contact inner race of outboard bearing once going to 2 bearings on PTO side
2 stroke Engine Tech of 30+ years, Prop tweeker, Chronic tinkerholic, Home of Motor Heads RC Racing Engines ...
8 time NAMBA National 6 lap heat racing record holder.
Last edit: 13 years 11 months ago by Scott.
Please Log in or Create an account to join the conversation.
- Scott
- Offline
- Devoted Enthusiast ... MGB Technical advisor
- Posts: 1254
- Karma: 27
- Thank you received: 23
ian69 replied the topic: Re: Zenoah three bearing?
scott will this work on a two bearing hirev quickdraw .
Please Log in or Create an account to join the conversation.
- ian69
- Offline
- Posts: 13
- Thank you received: 0
Scott replied the topic: Re: Zenoah three bearing?
ian69 wrote:Pretty sure it will being most of the more current QD's have 4 bearing bottom ends.
If on the older cases with only 2 main bearings, if the PTO end used the big bearing diameter seal it could be replaced by a third sealed bearing most likely.
If on the older cases with only 2 main bearings, if the PTO end used the big bearing diameter seal it could be replaced by a third sealed bearing most likely.
2 stroke Engine Tech of 30+ years, Prop tweeker, Chronic tinkerholic, Home of Motor Heads RC Racing Engines ...
8 time NAMBA National 6 lap heat racing record holder.
Please Log in or Create an account to join the conversation.
- Scott
- Offline
- Devoted Enthusiast ... MGB Technical advisor
- Posts: 1254
- Karma: 27
- Thank you received: 23
ian69 replied the topic: Re: Zenoah three bearing?
thanks scott just checked it's got the small seal .maybe i can get it machined to take the bearing.
Please Log in or Create an account to join the conversation.
- ian69
- Offline
- Posts: 13
- Thank you received: 0
Scott replied the topic: Re: Zenoah three bearing?
So your saying the crankcase is made so it uses a small seal like used on the MAG side on the PTO side as well ?
If thats the case, then live with it. Not practical or really doable taking the bearings O.D. bore outward to stack a second one along side it.
Just run it as is, your just fine as it is designed.
If thats the case, then live with it. Not practical or really doable taking the bearings O.D. bore outward to stack a second one along side it.
Just run it as is, your just fine as it is designed.
2 stroke Engine Tech of 30+ years, Prop tweeker, Chronic tinkerholic, Home of Motor Heads RC Racing Engines ...
8 time NAMBA National 6 lap heat racing record holder.
Please Log in or Create an account to join the conversation.
- Scott
- Offline
- Devoted Enthusiast ... MGB Technical advisor
- Posts: 1254
- Karma: 27
- Thank you received: 23
ian69 replied the topic: Re: Zenoah three bearing?
sorry it has the the thick seal so it's do able
Please Log in or Create an account to join the conversation.
- ian69
- Offline
- Posts: 13
- Thank you received: 0
Time to create page: 0.078 seconds