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60% failure rate!
Posted: Mon Mar 14, 2011 5:20 pm
by bobthebuilder
A few weeks ago, I had my annual inspection done.
Roy Gregson, and Gavin Lundy pointed out an interesting fact.
We had a look at the rotary valve oil bottle on five trikes. Three of them were fitted incorrectly.
The oil flows in a specific direction. There is a tube on the inside of the bottle where the oil is supposed to return. If the bottle is on the wrong way, and your oil level is low, the rotary valve cannot be lubricated.
Interesting eh!
Re: 60% failure rate!
Posted: Tue Mar 15, 2011 7:36 am
by nicow
How can the bottle be on the wrong way?
Re: 60% failure rate!
Posted: Tue Mar 15, 2011 8:01 am
by wiskeyfoxtrot
What ?? ...... Pics if possible please!

Re: 60% failure rate!
Posted: Tue Mar 15, 2011 8:03 am
by Duck Rogers
nicow wrote:How can the bottle be on the wrong way?
It has an "inlet" and "outlet", so to speak. Go and have a careful look at one and you'll see

Re: 60% failure rate!
Posted: Tue Mar 15, 2011 9:19 am
by Alkemac
Pic attached - you see, if the bottle is the other way around, oil will only go to the valve if if it is full to the top..
My thoughts are this could explain some valve seizures ?
Re: 60% failure rate!
Posted: Tue Mar 15, 2011 10:15 am
by nicow
Thanks

-I'll inspect mine.
Re: 60% failure rate!
Posted: Tue Mar 15, 2011 4:37 pm
by wiskeyfoxtrot
Re: 60% failure rate!
Posted: Wed Apr 06, 2011 8:23 am
by Boet
I noted during inspections that sometimes the bottle LOOKS full, but then is`nt. A level layer of sludge on the inside creates an illusion that the bottle is full, when in fact the oil level is waaaay down low. Take the cap off and CHECK VISUAL. The only way.

Re: 60% failure rate!
Posted: Thu Apr 07, 2011 8:30 pm
by Jean Crous
Re: 60% failure rate!
Posted: Sat Apr 09, 2011 7:22 pm
by JHA
Good day Gentlemen,
Please help, I’m new to this and would like to know
Just out of curiosity,
Who supply these little oil Bottles
Eg. (Is this a Rotax specific bottle

)
What damage can come of this
NL. (Inlet tube (4) and Return (5) changed around)
Must the Inlet (4) be connected to the bottom of the engine
And the return pipe from the top of the valve to the bottle
Regards
JHA
Re: 60% failure rate!
Posted: Thu Apr 14, 2011 10:23 am
by Tailspin
JHA wrote:Good day Gentlemen,
Please help, I’m new to this and would like to know
Just out of curiosity,
Who supply these little oil Bottles
Eg. (Is this a Rotax specific bottle

)
Yes this is a ROTAX specific bottle and you are looking at Ouchie price for Plastic bottle
What damage can come of this
NL. (Inlet tube (4) and Return (5) changed around)
Valve could sieze and ultimately the fan can go very quiet behind you and then OUCHIE on the Pocket.
Must the Inlet (4) be connected to the bottom of the engine
And the return pipe from the top of the valve to the bottle
Not 100% Sure but as what i can figure from the pic i would say the return pipe must be from the top of the Motor.
Re: 60% failure rate!
Posted: Thu Apr 14, 2011 12:24 pm
by Alkemac
dont know if this will help or not...
Re: 60% failure rate!
Posted: Thu Apr 14, 2011 12:50 pm
by Alkemac
sorry - wrong picture posted..my humble apologies!

Re: 60% failure rate!
Posted: Fri Apr 15, 2011 6:57 am
by Smiley
Re: 60% failure rate!
Posted: Fri Apr 15, 2011 7:28 am
by JHA
This is the right way gents
No 4 to the bottom of engine
No 5 from the top of the engine
I'm sorted
Thanks Alkemac
jha