Yamaha Beto V4 130 - Problem

Shog69 · 09 January 2012, 05:40

My outboard has suddenly developed a nasty rattle! Was out yesterday on the Forth, brother was driving and we were doing around 38 knots, WOT, trimmed right out, he slowed down to a stop but never trimmed the engine back down, but it was still low enough to be pumping water, prop still under the water etc, trimmed it right back down, and it stalled, started up again right away but it sounded rough, with a strange rattle sound every few seconds. Motored back into the marina but with a definite drop in power. Engine was given a full service 5 months ago and given a clean bill of health then, has done around 30 hours since and never any problems. Has been left with the company who serviced it at the marina to have a look at it but I feel like I have a huge bill coming! Any ideas chaps?

Xk59D · 09 January 2012, 09:03

was it knocking out of gear?

any difference with more/less revs?

any smell of fuel when it cut?

if you still have the motor handy i'd check compression to start.

cheers

Shog69 · 09 January 2012, 19:09

was it knocking out of gear? - No

any difference with more/less revs? - Slightly more noise with higher revs

any smell of fuel when it cut? - No smell of fuel when it cut out.

if you still have the motor handy i'd check compression to start. - It's down at the marina but if they dont get round to looking at it in the next few days I'll pop down and check that myself.

cheers

Xk59D · 09 January 2012, 19:39

it might be a gearbox problem if it stops out of gear. go spin the prop/check for anything loose.

keep us updated.

cheers

Shog69 · 12 January 2012, 07:48

Prop and gearbox are fine, sounds like it may be big end.

Xk59D · 12 January 2012, 07:56

ouch, you going to rebuild it?

cheers

Shog69 · 12 January 2012, 17:03

Well, I should know for sure tomorrow, but all comes down to cost.

Boats&Outboards · 12 January 2012, 18:51

Keep us updated as I know of some part from a Submerged Yam 115 V4 which would fit. May get it back to life dependant on what's needed

Peter ~ Boatsandoutboards4sale ~ askboatsandoutboards4sale@sky.com ~ 07930 421007

Shog69 · 12 January 2012, 18:56

Excellent, will let you know hopefully sometime in the next few days!

Shog69 · 13 January 2012, 18:10

Bad news today about my engine, it chucked a piston and the engine block is damaged beyond repair. So, kinda gutted! Thinking, new engine and sell the Yam for spares or repair, the rest of it is all good. What do you think I could get for it?

Jizm · 13 January 2012, 18:58

Quote:

Originally Posted by Shog69

Bad news today about my engine, it chucked a piston and the engine block is damaged beyond repair. So, kinda gutted! Thinking, new engine and sell the Yam for spares or repair, the rest of it is all good. What do you think I could get for it?

Break it up into bits and sell it yourself. Best bet if you can.

Shog69 · 13 January 2012, 19:12

Got one of my customers wanting to look at it first as he's re-built a few outboards and engines in his time, and always says anything can be fixed. Will need a new engine block, piston etc. it got us back in from 3 miles out so it still runs

Boats&Outboards · 13 January 2012, 19:15

I agree break it for spares and you may get a good return towards it's replacement.

Peter ~ Boatsandoutboards4sale ~ askboatsandoutboards4sale@sky.com ~ 07930 421007

Shog69 · 15 January 2012, 18:43

Not got the time or the skills to do this. Will sell the whole outboard for £500 if anybody wants it come and remove it from my rhib.