Noise in driveline

Hello everyone, I have a cal 33 with a Graco two blade folder prop and I'm trying to figure out what a noise is that only happens sometimes. I mentioned the prop because I'm hoping it's something that happens rarly with the prop that cuases the noise. It only happens under engine and happens about once every 20 hours or so then it slowly diminishes over a period of about 10-20 mins. Its a fairly loud tap tap tap and goes with the engine speed. The first time it happened was the worst. I thought the transmission blew or i wrapped a crab pot line around the shaft and maybe it was banging. It don't sound that violent now when it does it but it still does it at times. Could the bearing be going out in the tranny? Appreciate any input. Matthew SV Warm Winds 86 cal 33

I had a similar noise. It peaked at a specific rpm but was always there. It eas the combination of worn prop shaft and cutless bearing. Also check your engine mounts. Mine were bouncing and making anoise when the top mount hit the bottom one. Al Cal 33-2 #0026 > On Jun 27, 2018, at 12:03 PM, ma… [at] yahoo.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > Hello everyone, > I have a cal 33 with a Graco two blade folder prop and I'm trying to figure out what a noise is that only happens sometimes. I mentioned the prop because I'm hoping it's something that happens rarly with the prop that cuases the noise. It only happens under engine and happens about once every 20 hours or so then it slowly diminishes over a period of about 10-20 mins. Its a fairly loud tap tap tap and goes with the engine speed. The first time it happened was the worst. I thought the transmission blew or i wrapped a crab pot line around the shaft and maybe it was banging. It don't sound that violent now when it does it but it still does it at times. Could the bearing be going out in the tranny? > Appreciate any input. > Matthew SV Warm Winds 86 cal 33 >

Put your naval architect hats on. Is there a good reason - besides resale - that I shouldn't cut up the galley counter and its supporting bulkheads and convert them into modular pieces, to make engine work (e.g. re-power) significantly easier on my 2-27? The galley countertop and the bulkheads underneath it appear to provide the largest piece of solid structure that spans the widest part of the hull, so I'm tempted to think they're structurally important and that my boat will get squished and compromised without them in place. But it's a small boat with a heavy layup, not a stripped down ULDB, and I'm not crossing oceans anytime soon. So a few big cuts here and there are fine, right? Tell me I'm wrong. In fact, now that I think about it, though the countertop I believe is one solid span, most of the other bits are just screwed and cleated together, not glassed. Practically an invitation for modification! -Adam2-27 in Berkeley, CA

What is the year of your 227? There were different layouts in that section of the boat. Picture would be nice. John B Cal 227 #650 On Wed, Jun 27, 2018, 8:47 PM Adam as… [at] yahoo.com [Cal_Boats] < Ca… [at] yahoogroups.com> wrote: > > > Put your naval architect hats on. > Is there a good reason - besides resale - that I shouldn't cut up the > galley counter and its supporting bulkheads and convert them into modular > pieces, to make engine work (e.g. re-power) significantly easier on my > 2-27? > The galley countertop and the bulkheads underneath it appear to provide > the largest piece of solid structure that spans the widest part of the > hull, so I'm tempted to think they're structurally important and that my > boat will get squished and compromised without them in place. But it's a > small boat with a heavy layup, not a stripped down ULDB, and I'm not > crossing oceans anytime soon. > So a few big cuts here and there are fine, right? Tell me I'm wrong. > In fact, now that I think about it, though the countertop I believe is one > solid span, most of the other bits are just screwed and cleated together, > not glassed. Practically an invitation for modification! > -Adam > 2-27 in Berkeley, CA > >

These bulkheads can be important, or not. If it is only one one side of the boat, probably not. But if there is a similar bulkhead on the other side, doing something else of course, I would not take it out. Allen On Wed, Jun 27, 2018 at 5:53 PM, John b je… [at] gmail.com [Cal_Boats] < Ca… [at] yahoogroups.com> wrote: > > > What is the year of your 227? There were different layouts in that > section of the boat. Picture would be nice. > > John B > Cal 227 #650 > > On Wed, Jun 27, 2018, 8:47 PM Adam as… [at] yahoo.com [Cal_Boats] < > Ca… [at] yahoogroups.com> wrote: > >> >> >> Put your naval architect hats on. >> Is there a good reason - besides resale - that I shouldn't cut up the >> galley counter and its supporting bulkheads and convert them into modular >> pieces, to make engine work (e.g. re-power) significantly easier on my >> 2-27? >> The galley countertop and the bulkheads underneath it appear to provide >> the largest piece of solid structure that spans the widest part of the >> hull, so I'm tempted to think they're structurally important and that my >> boat will get squished and compromised without them in place. But it's a >> small boat with a heavy layup, not a stripped down ULDB, and I'm not >> crossing oceans anytime soon. >> So a few big cuts here and there are fine, right? Tell me I'm wrong. >> In fact, now that I think about it, though the countertop I believe is >> one solid span, most of the other bits are just screwed and cleated >> together, not glassed. Practically an invitation for modification! >> -Adam >> 2-27 in Berkeley, CA >> >> >

Matthew, My 1986 Cal 33-2 developed a tapping noise under power back in 2000. We needed a bottom job, so the boat was hauled and we discovered that the strut could be moved up and down about an 1/8" and that there was water in the layup, but not entering the boat. They ground the glass out from around the strut, aligned the shaft, and re-glassed the strut with numerous layers of fiberglass. The noise never returned. Not certain that this is your problem, but it is worth investigating. Don Dutton 1986 Cal 33-2, "Quantum Evolution" > On June 27, 2018 at 12:03 PM "ma… [at] yahoo.com [Cal_Boats]" <Ca… [at] yahoogroups.com> wrote: > > > > > > Hello everyone, > I have a cal 33 with a Graco two blade folder prop and I'm trying to figure out what a noise is that only happens sometimes. I mentioned the prop because I'm hoping it's something that happens rarly with the prop that cuases the noise. It only happens under engine and happens about once every 20 hours or so then it slowly diminishes over a period of about 10-20 mins. Its a fairly loud tap tap tap and goes with the engine speed. The first time it happened was the worst. I thought the transmission blew or i wrapped a crab pot line around the shaft and maybe it was banging. It don't sound that violent now when it does it but it still does it at times. Could the bearing be going out in the tranny? > Appreciate any input. > Matthew SV Warm Winds 86 cal 33 > > > > > >