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Old 18 May 2013, 14:16   #11
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Country: UK - England
Town: NW& wherever the boat is!
Boat name: depends on m'mood!
Make: Humbers/15-24m cats
Length: 6m +
Engine: etec130/big volvos
MMSI: many and various
Join Date: Nov 2001
Posts: 1,815
sorry for delay... just got back to UK I'll come back with the fix when I've had a brew or six!
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Old 18 May 2013, 15:45   #12
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Country: UK - England
Town: NW& wherever the boat is!
Boat name: depends on m'mood!
Make: Humbers/15-24m cats
Length: 6m +
Engine: etec130/big volvos
MMSI: many and various
Join Date: Nov 2001
Posts: 1,815
engine holder /adaptor. Take the covers off the lower leg and under the powerhead is the engine holder through which seawater coupled with lotsa lovely hot exhaust gasses find their way . Port side you will find a mild steel plug which looks just like the sorta thing you would find in a domestic radiator.
THIS STEEL PLUG IS SCREWED INTO THE ALUMINIUM ALLOY CASTING!
NOW WHICH DESIGN ENGINEER THOUGHT THAT WAS A GOOD IDEA ??
Unsurprisingly this little cocktail of dissimilar metals and a corrosive atmosphere rots the aluminium alloy around the plug and hot exhaust gasses find their way into the hood and the map sensor is doing its job and lettimg ya know. Run with the hood off and the gasses disperse. The parts are sommat like 700 or so plus VAT
The casting has been modified a number of times( to eliminate the steel plug ??) I wonder why?.
However Suzuki did not want to know! Nor would they admit it was a problem of their making. Reminded me it was out of warranty (which it is by a long way). Waffled on about anode replacement during servicing. My mechanic is first class and, as a professional skipper of bigger vessels I know full well the need to replace engine anodes and its all been done.
Extremely disappointed with Suzuki's attitude and looking on the net it seems to be their policy on this matter in the US as well as here.
Was surprised that the "experts" on here gave the wrong info and had not heard of what seems to be an issue so well known to the guys in the trade .
We fixed it by cleaning up the corroded hole after the stud had been removed. Fixed a stainless patch over the hole fixed by a couple of s/s self tappers and bedded down into plastic metal. I know of another engine repaired like this and running commercially every day with no further issues


DF140-hole in exhaust

My Johnson's Fixed!


Engine holder problem anyone else
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Old 19 May 2013, 16:47   #13
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Country: UK - England
Town: Lee on the Solent
Boat name: Rib Bravo
Make: Ribcraft
Length: 7m +
Engine: Volvo KAD32
Join Date: Aug 2011
Posts: 3
Thank you wavelength... we have patched up ours in a simular manner and it seems to work just fine.....

Ours is just shy of 5000 hours now.... yes I did type that right "five thousand"... so mustn't grumble as this is the first trouble we have had with it. :-)

Should keep it going for a little bit longer.

CJP
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