Mariner 65 HP autolobe

[christop]

Hello can anyone pls advise. I have a Picton Sunsport, use frequently launch and recover off Port Eynon (Gower) beach. Just recently noticed the exhaust is puffing 'white' smoke and I have a weak tell tale.

Sounds like the impellor? unless anyone has other advice, greatly appreciated.

Has anyone experience of changing the impellor, apparently the gearbox needs to be dropped?!? and not sure if this is easy.

Would appreciate any advice to continue happy speedboating!!

Kind regards, Chris

[stan_deezy]

Its a doddle to drop the box and change the impellor. Try this page for a picture guide to "how to":

http://www.lot-o-nothin.com/lotonothin/article.cfm?id=1

its for an evinrude but the process is very similar

[Jizm]

Originally Posted by stan_deezy

Its a doddle to drop the box and change the impellor. Try this page for a picture guide to "how to":

http://www.lot-o-nothin.com/lotonothin/article.cfm?id=1

its for an evinrude but the process is very similar

Good article that!

[Richard B]

Originally Posted by stan_deezy

...its for an evinrude but the process is very similar

And remarkably similar to the Yamaha process Yamaha Impeller change

Sorry I don't know about the "white smoke though"

[stan_deezy]

Originally Posted by Richard B

And remarkably similar to the Yamaha process Yamaha Impeller change

yep, all are very similar: your pics and walk thru are excellent

where the evilrudes and johnys of a certain size and age differ is in the gear shift rod arrangement (as mentioned in the other thread); luckily the mariner is a push fit: on the rudes they are bolted together and can require gear shift adjustment afterwards, which is not always straightforward (speaks the voice of frustrated experience!)

[Phil Robinson]

I agree with Stan, I've done it a number of times on a few motors. Dead easy, just make sure you replace anything that looks worn also.

I had a smoke problem too. Turns out that my fuel tank was constantly vented (I have premix) & I was losing fuel to evaporation, but obviously not oil. Smoke sounds like you need to have the oil mixing bits looked at. Could you be running a bit rich?