17mm coolant hose and 90 degree hose 922192

Hi Andrew

You are right about that hose being a lot smaller diameter than 17mm. It will fit because it has to fit, it will just need a good push and a wiggle with maybe a bit of lube to get it on properly.

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How much was the 17mm hose from Rotax?

Okay, I've read through this again, but what's the bottom line?  What size hoses and what hose clamps and where should I get the parts and what are the part numbers? 

I am a newly opened one-man LSA shop with a bunch of customers who want 5-year rubber replacements and I hate them.  (The rubber replacements, not the customers.)  Roger, "But I stick with Rotax hoses. As a mechanic, I'm not willing to experiment on other planes and accept the civil liability..."  I agree wholeheartedly working on other people's airplanes is a huge responsibility.  Using constant tension spring clamps allows the connection to expand and contract with the heating and cooling cycle of engine operation, but the clamp needs to be the correct size.  I am constantly chasing coolant leaks on aircraft which use worm drive clamps which don't have this capability.   But trying to put too small a hose on some of the fittings, particularly those under the engine where space is limited, is near impossible.  I have ordered some 17mm hose from some of the Rotax suppliers and what I got was garbage.  I know it is not proper form to name names but where can I get the right parts for the job?  

"The right tool for the job makes the mechanic happy and a happy mechanic makes the owner even happier." 

"In aircraft maintenance, good enough is not good enough.  Do it right or don't do it at all."