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Dave,
just checking back with an update, spent today in the lockers and jumping up and down the companion way without steps, only got stuck once, I don't know how I managed to get so far in but for a while it was some pretty tricky reversing. Anyway I've had quite a bit of success, the mechanic was talking rubbish, there was up and down and side to side adjustment available on all 4 mounts, she's quitened down considerably just a bit of noise at lower revs when the engine is lumpy so i'll probably have another crack at it (and really stuff it).
Thanks
Brad
If your sailing with a 160% genny and 2 reefs in the main what's the balance like, doesn't it give you some lee helm?
Single line reefing can work very well but a few points to note, firstly it's a lot of line to pull especially when you get to 2nd reef, 2nd, there's a lot of turns and hence friction can be a problem, 3rd, you must make sure that the tack is tight in first before the clew is tightened if you want a good shape.
I use a two line reefing setup, a tack line and a clew line both led back to the cockpit as is the halyard. The set up works fine with room for adjustment of the foot and it keeps its shape. Procedure, release halyard, pull in tack line, tighten halyard as req. then pull clew line.
The tack line needs to have some element of forwrd force so set blocks nearer front edge of mast about 45 degrees down from final set point, obviously the clew needs to be pulled towards the boom aft end.
Brad Croshaw
Well put, thanks, when the mechanic did the work he had to drill the old coupling off due to rust. I'll have a good look when i'm at the boat in the week.
Thanks again for the 'distant diagnosis'
Brad Croshaw
'Much Ado' Trapper 500
UK South Coast
Good call, went to the boat today and threatened it with a lump of 4x2 and it shut up, so, sideways pressure on the rear of the engine stops the noise. I presume this means alignment, is it ok to ease the rear engine mount bolts and gently shift engine or am I just going to create a problem elsewhere?
Thanks
Brad
Thanks for yout feedback,
mine is an early trapper from 1973, doesn't have the quarter berth like the later trappers and has a lead keel, the info on this site has been very informative.
The noise appeared at the end of the season after a year with the new cutlass, shaft and mounts. I hadn't done any work or maintenance immediately before it appeared, hence my thinking it was fouling.
When the engineer did the work we noticed there was some wear to the side of the outer end of the stern tube. The mechanic said he would re-allign the shaft and engine but later reported that he was unable to do the work because of the beds, there was no room for adjustment.
Whilst the boat was out recently I checked the bearing by trying to detect any sideways movement around the bearing whilst applying sideways back and forth force, there was very little detectable movement, nothing I found alarming. When I rotated the prop the was some noise but nothing like what I have been hearing whilst the motoring, maybe this is because I wasn't able to rotate the shaft fast enough by hand.
I am fairly tuned into the normal running noise of the engine and this is definitely additional, i've done some simple listening tests and the noise is only there when the prop is rotating, in forward and reverse, at any speed but gets a bit more aggresive as the speed increases. I've also laid on the dockside and next to the boat and can hear it resonating through the hull. It is cyclical and ryhtmic but not in tune with prop rotation as such, it sounds a bit like when a worn ball bearing is spun fast and some rumbling chatter is audible.
I had the stuffing box re-packed and the rubber hose connection between the stern tube and stuffing box replaced at the same time. When I observe the coupling/ stuffing box area from within the locker there is some vibration movement but I assume this must be fairly normal for a small 2 cyl diesel.
I don't mind engaging the services of a good mechanic and paying for a good job but as I've just paid out for a haul, storage and relaunch and I've moved ports away from the original mechanics, I'm trying to decide whether it is something I can safely live with till the end of season haul or is it in danger of rapid deterioration and failure which requires immediate attention.
Thanks, Brad
Hi
I have a trapper 500, about the same as a mark 3 I think, Late last season I noticed a rumble noise coming from the area of the prop when motoring. I assumed it was probably fouling on the prop and kept the revs low. I have just relaunched following 8 weeks of winter maintenance which included cleaning up the prop and shaft and applying the Seajet 'pellor clean' antifouling.
I'm disappointed to find that the rumble is still there in forward and reverse. I had the cutlass bearing, prop shaft and engine mounts replaced 18 months ago. The engine is a volvo 2002 18hp with a 13 x 9 prop, the tip clearance is only about 3/4". Any Ideas?
Brad Croshaw
My T500 had a flexible tank when I purchased her. I like being able to remove it at the end of the season and give it a good clean, the water always tastes good. It's not very big, about 8 uk gallons and it can get an air lock when filling, I found putting a weight on it helps. It lives under the aft table seat.
Brad Croshaw
OK,
where do I send them?
Brad
Hello Ken
I carried out this project on my Trapper 500, I used an instrument pod from Scanstut which was designed for a binacle, I had two short s/s mountings made up and bolted them to the hatch garage then fixed the pod to them. The worst bit was the wiring, I used a gland on the coach roof near the mast to pass the wind instument cable through and fed the log and sounder cable in conduit up the bulkhead next to the mast post, I then fed them between the headlining and deck to a point below the hatch garage and then back through the deck, a cow of a job but worth the effort.
I have some pictures if would like to see the finished job.
Brad Croshaw
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