I switched to a tides seal 3 years ago at 1700 hours. It stays perfectly dry. No more intermittent misting experienced with the prior PSS. Also replaced Cutlass Bearings at same time. After pulling the old i was really premature in replacing them as the showed hardly any wear.
The only water I get periodically in the bilge is from the hot water tanks pressure relief valve.
Regards
Torben Mann
37-181
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Today's Topics:
- Cutlass Bearings & shaft seals (Steve Day)
- Re: Cutlass Bearings & shaft seals (Harry Hungate)
- Diesel heater (Harry Hungate)
- Re: Cutlass Bearings & shaft seals (Evan Effa)
- Re: Diesel heater (Jim Waskowich)
Message: 1
Date: Sat, 1 Feb 2025 17:23:07 +0000
From: Steve Day s.day2905@gmail.com
Subject: [Sentoa] Cutlass Bearings & shaft seals
To: "South East Nordic Tugs Owners' Association (SENTOA)"
sentoa@lists.sentoa.org
Message-ID:
CALT24kNyyDx72sRY4M39Ob-kD-20QL=2UnMci2G+P3iw_52auw@mail.gmail.com
Content-Type: multipart/alternative;
boundary="0000000000004bac61062d17eafb"
Hi all, and greetings from the UK.
My 2007 NT37 has now done 2300 hours, when I purchased the boat in 2018 it
had done around 1100 hours. As far as I'm aware the cutlass bearings have
never been replaced. The boat is in salt water which can be a bit silty on
the UK east coast. No undue vibration when going forward, but a bit grumbly
in reverse.
Secondly, I have the PSS shaft seal, which I replaced like for like in
2019, whilst the seal does not leak per se, I do get the messy black mist
spray that covers the area around the seal.
So, 2 questions:
- Have I gone beyond what would be a reasonable length of time / hours to
change the bearings? (Does anybody have details of suitable replacements?)
- Has anybody tried using lip shaft seals (thinking Lasdrop) instead of PSS
and had totally leak free shaft and a nice clean bilge?.
Thanks all
Steve
SINBAD
NT37/192
I switched to a tides seal 3 years ago at 1700 hours. It stays perfectly dry. No more intermittent misting experienced with the prior PSS. Also replaced Cutlass Bearings at same time. After pulling the old i was really premature in replacing them as the showed hardly any wear.
The only water I get periodically in the bilge is from the hot water tanks pressure relief valve.
Regards
Torben Mann
37-181
> On Feb 1, 2025, at 12:56, sentoa-request@lists.sentoa.org wrote:
>
> Send Sentoa mailing list submissions to
> sentoa@lists.sentoa.org
>
> To subscribe or unsubscribe via email, send a message with subject or
> body 'help' to
> sentoa-request@lists.sentoa.org
>
> You can reach the person managing the list at
> sentoa-owner@lists.sentoa.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Sentoa digest..."
>
> Today's Topics:
>
> 1. Cutlass Bearings & shaft seals (Steve Day)
> 2. Re: Cutlass Bearings & shaft seals (Harry Hungate)
> 3. Diesel heater (Harry Hungate)
> 4. Re: Cutlass Bearings & shaft seals (Evan Effa)
> 5. Re: Diesel heater (Jim Waskowich)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 1 Feb 2025 17:23:07 +0000
> From: Steve Day <s.day2905@gmail.com>
> Subject: [Sentoa] Cutlass Bearings & shaft seals
> To: "South East Nordic Tugs Owners' Association (SENTOA)"
> <sentoa@lists.sentoa.org>
> Message-ID:
> <CALT24kNyyDx72sRY4M39Ob-kD-20QL=2UnMci2G+P3iw_52auw@mail.gmail.com>
> Content-Type: multipart/alternative;
> boundary="0000000000004bac61062d17eafb"
>
> Hi all, and greetings from the UK.
>
> My 2007 NT37 has now done 2300 hours, when I purchased the boat in 2018 it
> had done around 1100 hours. As far as I'm aware the cutlass bearings have
> never been replaced. The boat is in salt water which can be a bit silty on
> the UK east coast. No undue vibration when going forward, but a bit grumbly
> in reverse.
>
> Secondly, I have the PSS shaft seal, which I replaced like for like in
> 2019, whilst the seal does not leak per se, I do get the messy black mist
> spray that covers the area around the seal.
>
> So, 2 questions:
> - Have I gone beyond what would be a reasonable length of time / hours to
> change the bearings? (Does anybody have details of suitable replacements?)
> - Has anybody tried using lip shaft seals (thinking Lasdrop) instead of PSS
> and had totally leak free shaft and a nice clean bilge?.
>
> Thanks all
>
> Steve
> SINBAD
> NT37/192
>
