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Old 07 August 2009, 09:19   #11
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Originally Posted by Steve.N View Post
This is all very interesting as this is EXACTLY the same issue I'm having on my Suzi Dt55 (see my other thread if interested!)

Yesterday she ran great - then on way back the engine dropped off to 4200rpm and would rev anymore - more throttle - nothing.
We just eased off throttle and she sat at 4200rpm happily - she cruised home not missing a beat - took over 10mins.
I have new fresh petrol and had only changed the fuel lines and filter at start of season - also added a water/fuel separator filter.

This sounds basically the same problem as Blackroady's - I've been plagued with it all season. Why would the engine run ok for a while then suddenly loose power if it's fuel issue??
Is the fuel pump serviceable??
Stupid question but - is the fuel tank breather open (not blocked)?
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Old 07 August 2009, 09:43   #12
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No such thing as a stupid question when trying to fix something like this !

I for one didn't check mine. It 'should' be venting all the time to my under deck tank - but I will blow down it to make sure !

Pete
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Old 07 August 2009, 11:36   #13
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If you can get to your primer bulb while running, try giving it a squeeze or three while throttled up (assuming it isn't collapsed, which would indicate a blockage prior to the bulb.) If your rpms come up, it indicates a fuel delivery problem of some sort. Could be a blockage, a bad fuel pump, quite a few other things. But it will confirm a fuel problem vs something else.

Luck;

jky
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Old 07 August 2009, 16:53   #14
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Originally Posted by Polwart View Post
Stupid question but - is the fuel tank breather open (not blocked)?

I feel stupid asking this - but as this is my first boat I have to:- My tank is a handmade stainless steel unit below the jockey seat/console. I can see the fuel pipe, but can't see a breather???
How does this work as I always assumed that the breather should be closed so when you prime the bulb it pressurizes the systems and forces the fuel through - obviously I'm wrong - can you explain?


Good point about squeezing the bulb when the problem occurs - never thought of that!!
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Old 07 August 2009, 17:23   #15
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That used to happen to me quite frequently when I was in the Navy, was always the HT leads comming off in roughers bit embarising comming along side a fishing boat or into a harbour there you are trying to look impresive and your boats doing 6 knots.
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Old 07 August 2009, 17:30   #16
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Just back from the boat - HT leads look secure ( it was very calm when the problem occured) & having blown down the vent its clear. Hopefully it was something now gone - a few quick blips to WOT in the river & it seems OK - may have bust the speed limit slighlty tho !

Steve - when you pump the bulb you are only pressuring the bit between the bulb & the engine - the tank will stay open to vent to the atmosphere to allow the engine to suck petrol through ( if its closed the engine cant pull against the reduced pressure in the tank.

Pete
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Old 07 August 2009, 17:44   #17
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Pete,

Completely off topic, am bringing the boat to Christchurch for a few days next week and was wondering whether you could answer a question for me. The captains club advertise moorings do you know if they offer this to passers by looking for a few drinks maybe lunch or is it only for staying guests? Also is there anywhere further up river to stop for lunch? Thanks mate Luke
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Old 07 August 2009, 17:59   #18
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Hi Luke - they let anyone stop even if its just for a coffee -. I usually just call them when I am few minutes away on the river. Sometimes they are 'full' , but usually you can squeeze in behind thier resident gin palace. I live within 100yrds and they are pretty chilled out - I go in without shoes & very wind swept if I'm off the boat

You can stop on the quay itself - literally right on the end and go to 'The Boathouse' and still see the boat , or at Mudeford 'The Beachouse' (same owner) - but you will need a tender for that with the boat at anchor.

The only other place to go up river is tuckton tea gardens - great fried breakfast - but in the summer not sure where you can actually stop.

If you need anything or want to stop 'mid river' you are welcome to stop alongside me anytime, or if you want to leave the boat in the water. The ferry cross river can drop you off to the moorings. You cant miss my RIB - opposite slipway (ish) with a hefty 200 on the back ! Only one around that bit of the river

Fair is here next week with fireworks Sat night - so a busy week in Christchurch - just mind the bloody rowers ! In the bilges with that rant !

I'm around Thurs & Friday
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Old 07 August 2009, 18:11   #19
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Thanks for that Pete, Ill see where the Mrs fancys going altleast I have a few options!

Spend plenty of time in Christchurch but have never had the time to get the boat out there.

Im policing the fireworks on Sat so should be fun, I was working at the Funday on Sunday which all ended calmly compared to previous years!!

Thanks again, Luke
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Old 08 August 2009, 11:50   #20
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So back from probably the best days boating weather this year ( and its only mid August ) , all seems fine again even at max fuel flow of around 78 lph . Maybe its just the time of year for optis to play up ?

Pete
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