gadix

My Feedback: (2)

wow!!!!!!!!!!!!!![:@]

while flaying normally with my extra 260 with a brison 2.4 on it this after noon, i had an engine cut.
i barely reached the runway, broke the CF LDG.

at home i have removed the prop and cowl to try to figure out why i had a cut.

the prop shaft is tuning freely like butter!!!!!!!!!!![:@]

i removed the plug to see if the piston is moving up\dw....[:@] nothing!!!!!!!!!!!!!


what went wrong?????

why is that????

carburetor was ADJ as in manual!
oil was mixed was as per manual 100% sysntc.


any suggestions guys?

and the 64,000$ Q???? dose brison still in business???

if anyone have spare parts pls let me know.



thx

gadi

Flip and Fly

Sorry to here about your engine failure, things do go wrong at times. Brison can be reached at http://www.kangkeusa.com/ and yes they are still in business

TLH101

My Feedback: (90)

Call the "support" number at Brison : http://www.brisonaircraft.com/contact_us.htm

gadix

My Feedback: (2)

mmm kangke????
how come????

the line is bussy
gadi

Don M.

My Feedback: (5)

I had exactly the same thing happen to my Brison 2.4 about 5 years ago. Sent it to Brison and they repaired it and it cost me $200.00 Cdn. When I asked why, he told me it was because I was mixing my gas / oil 50:1 instead of 100:1. I said b_ _ _ S _ _ _ and 5 years later I'm still running 50:1 in 4 different gas engines without a problem.

This was 1 of MANY problems I had with my Brison engine, their warranty & workmanship. I know 99.9% of you are in love with Brison but I for one will never buy another. [:@][:@][:@]

Flip and Fly

The Brison web sight was down for some time, however it seems to be up again, its the support number you need. Good luck.

Antique

My Feedback: (4)

That's a new one, never heard before..I would really like to know how 50-1 fuel mix can cause a crank to break..Shades of A&M
You on here Brison ?

Diablo-RCU

My Feedback: (1)

Maybe the combustion chamber was so loaded with carbon that the piston smacked the cylinder head, or so much carbon that it caused preignition and detonation.

AirTech

My Feedback: (18)

I don't have any idea as of where this rumor about Brison been out of bussisnes comes from. You can find them still at http://www.brisonaircraft.com/


There is some people out there that don't have anything better to do than spread rumors.

Bass1

That probably came from the "will Brison survive" thread here. Reminds me of the episode on the old Andy Griffith show when Barney had a slight scratch on his hand and by the time the gossip ran it's course "Barney had shot himself dead."

Don M.

My Feedback: (5)

That's the line they fed me but when I got the engine back it didn't run properly and after many discussions with "Harvey" assuring me that the engine was fine I sent it off to C & H Ignitions who found a weak coil and told me in all propability this caused the broken crank. In any case I've been running the engine off & on for 5 years still using the same oil mixed 50:1 without incident. All in all this engine cost me $500.00 in repairs over about 300 flights.

Flip and Fly

Never had any warranty issues with my motor, so I can't comment on that. The good, the bad, and the ugly, its all hear on RCU.

Tired Old Man

My Feedback: (1)

One thing many people fail to mention after their engines break is how many times before that day the engine had encountered a prop strike of impacted the ground in a different plane. I don't know if any of the above apply in this case, in fact I'm almost certain that they will be denied, but none of the engines out there are good at taking abuse.

End game, call Gary at Brison and see what he says, not what we say.

Pat

marzo91

My Feedback: (57)

I wrote the article, "Will Brison Survive?" You are right, the post took off with a life of it's own. I wrote the post because I was wondering if Brison will survive, without Gary at the helm. Then people claimed I said they were going out of business. I didn't spread any rumors, but it took off in that direction. At the end of the ordeal, Barney was O.K.

AirTech

My Feedback: (18)

Sorry guy, I didn't mean to be derisive. I know how easy posts can get misconstrued, and soon becomes something totally different from what you were trying to say or ask.

gadix

My Feedback: (2)

full story:

1. the 2.4 is second hand, worked less than 2 hours!
2. had a broken ring , got new one from Garry...3 month ago.
3. since i have installed the new parts the engine worked 20 min top!!!!
4. all adjustments are by the book along with Garry on-line help international calls from Israel to TX$$$$$$$$
5. oil mix is as gary told me to 80:1 no 100 and no 50...mmmm?

yet dint open the engine still.... will do this weekend and keep you guys posted.

thx
gadi

BillS

Speaking as a Mechanical Engineer I think anyone blaming crank breakage on the difference between 50:1 and 100:1 oil mix is simply totally misinformed or much worse.

Bill

waynem

My Feedback: (58)

Can excess carbon really damage an engine? If so is there a safe way to remove it without taking the engine apart? Could anyone tell me the right type of spark plug for a brison? Is champion rcJ7y the right plug? thanks Wayne M.

buchtes

My Feedback: (7)

Ditto: much worse,worse,worse, as in headlight leaking oil?!?

BillS

Spoken with kindness so as not to disturb the thought police with descriptive adjectives usually reserved to describe low IQ.

Bill

Diablo-RCU

My Feedback: (1)

The carbon theory is a handy excuse. Preignition and detonation from carbon will certainly leave evidence of damage on the piston crown and sparkplug. The rod bearings should also show signs of damage in a severe case.......before I would expect to get a broken crankshaft. Detonation is a high pressure shock wave that you can hear. A more likely cause of crankshaft failure (assuming no crash damage), is a sharp notch from machining - someone forget to machine a radius.

buchtes

My Feedback: (7)

I second this theory, speaking as a machinist with 42 years of experience. BUT, let's not rule out several propstrikes of which no - one will admitt . You know, has something to do with pride or professionalism..................

Tired Old Man

My Feedback: (1)

A Champion RCJ7Y is one of the correct plugs for a Brison.

Inside a Brison engine there is a small "keeper" as part of the crankshaft assembly. This small keeper can be broken during a prop strike or impact with the ground.

I suspect that this may be the culprit here and returning the engine to Brison for service would be the most appropriate and expeditious ways of resolving the issue. I understand that Israel is a long, long ways away, but had that been done in the beginning the engine would have been up and running a couple of months ago.

buchtes

My Feedback: (7)

sure be nice to get a copy of the drawings of this little jewel, just to see what is inside.

gadix

My Feedback: (2)

OK!

i have opened the engine today.............[:@]

as i suspected.. the prop shat is tier in the crankshaft just 3 mm from the push wheel..see pic.[img][/img]

1. plug is clean and dry - no oily or greasy
2. carbon in the cylinder top area Sims normal, just wipe it up and all is clean.

i need a crank shaft???? were to get it?
how to disassemble the shaft from the ball bearings and cylinder?

i cant spend so much money for shipment and repair to TX!
i will try to fix in israel and if no go than it is cheaper to buy a new one.


thx
gadi