Backwashing was a great idea. I put a cone shaped nozzle with a built in ball valve on the hose and rag wrapped it then flushed the intake from the strainer. It seems fine. Then I pulled the hose off the front of the heat exchanger and water came out when I ran the engine. Next, I put the hose on the intake to the exchanger...it backed up even after a shut off the water.
My conclusion - the issue is either the heat exchanger or the riser. Pulling the hose off the riser. It was replaced About 500 hours ago but I guess that may need to be done again. If that’s the issue, I’m going to stainless. Tom B Typoed from my iPhone Tom Buscaglia Alera 1990 C&C 37+/40 Vashon Island WA O 206.463.9200 C 305.409.3660 Skype - thombusc > On Dec 29, 2019, at 1:32 PM, cnc-list-requ...@cnc-list.com wrote: > > Send CnC-List mailing list submissions to > cnc-list@cnc-list.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > or, via email, send a message with subject or body 'help' to > cnc-list-requ...@cnc-list.com > > You can reach the person managing the list at > cnc-list-ow...@cnc-list.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CnC-List digest..." > > > Today's Topics: > > 1. Raw Water Blocked (Tom Buscaglia) > 2. Re: Raw Water Blocked (John Irvin) > 3. Re: Raw Water Blocked (John and Maryann Read) > 4. Re: Raw Water Blocked (Stephen Thorne) > 5. Re: Raw Water Blocked (Jack Fitzgerald) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 29 Dec 2019 09:14:48 -0800 > From: Tom Buscaglia <t...@sv-alera.com> > To: cnc-list@cnc-list.com > Subject: Stus-List Raw Water Blocked > Message-ID: <15897df5-2523-4afc-aa4b-50415ab6b...@sv-alera.com> > Content-Type: text/plain; charset="utf-8" > > Alera has a blockage somewhere in the raw water system. Nothing out the > exhaust. > > I checked the intake and the pump. Both seem fine. But, there seems to be > no flow at the strainer. > > I am wondering if there is some maintenance needed for the vented loop? It > is the next link in the chain and I?m running out of links. > > Tom Buscaglia > S/V Alera > 1990 C&C 37+/40 > Vashon WA > P 206.463.9200 > C 305.409.3660 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20191229/7565447d/attachment-0001.html> > > ------------------------------ > > Message: 2 > Date: Sun, 29 Dec 2019 17:32:15 +0000 > From: John Irvin <skis...@outlook.com> > To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> > Subject: Re: Stus-List Raw Water Blocked > Message-ID: > > <bl0pr01mb4563eb6167f3b14d51f61eceba...@bl0pr01mb4563.prod.exchangelabs.com> > > Content-Type: text/plain; charset="utf-8" > > Try backwashing the raw water intake . > > Sent from my iPhone > > On Dec 29, 2019, at 12:15 PM, Tom Buscaglia via CnC-List > <cnc-list@cnc-list.com> wrote: > > ? Alera has a blockage somewhere in the raw water system. Nothing out the > exhaust. > > I checked the intake and the pump. Both seem fine. But, there seems to be > no flow at the strainer. > > I am wondering if there is some maintenance needed for the vented loop? It > is the next link in the chain and I?m running out of links. > > Tom Buscaglia > S/V Alera > 1990 C&C 37+/40 > Vashon WA > P 206.463.9200 > C 305.409.3660 > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20191229/690dee68/attachment-0001.html> > > ------------------------------ > > Message: 3 > Date: Sun, 29 Dec 2019 13:12:40 -0500 > From: "John and Maryann Read" <johnprea...@gmail.com> > To: <cnc-list@cnc-list.com> > Subject: Re: Stus-List Raw Water Blocked > Message-ID: <001201d5be73$8fdcdaf0$af9690d0$@com> > Content-Type: text/plain; charset="utf-8" > > Tom > > What engine do you have? Fresh or raw water cooled? Common issue for > Yanmar is exhaust riser getting plugged by carbon etc where water enters. > Will also impact engine performance. Disconnect hose where enters exhaust > riser. If water streams, then you have your answer. Also check the fitting > where hose attaches to riser ? is clear?? If not, best place is check if any > blockage at intake or strainer ? maybe something got into and plugged the > hose?? A friend?s hose inlet has less than ideal configuration and > frequently sucks up eel grass and such and plugs the inlet hose. Another > culprit might be the pump impeller lost a vane and is stuck in the system > before the strainer. > > > > Just some thoughts and good luck > > > > > > John and Maryann > > Legacy III > > 1982 C&C 34 > > Noank, CT > > > > > > > > > > > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Tom > Buscaglia via CnC-List > Sent: Sunday, December 29, 2019 12:15 PM > To: cnc-list@cnc-list.com > Cc: Tom Buscaglia > Subject: Stus-List Raw Water Blocked > > > > Alera has a blockage somewhere in the raw water system. Nothing out the > exhaust. > > > > I checked the intake and the pump. Both seem fine. But, there seems to be > no flow at the strainer. > > > > I am wondering if there is some maintenance needed for the vented loop? It > is the next link in the chain and I?m running out of links. > > Tom Buscaglia > > S/V Alera > > 1990 C&C 37+/40 > > Vashon WA > > P 206.463.9200 > > C 305.409.3660 > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20191229/2a82e80b/attachment-0001.html> > > ------------------------------ > > Message: 4 > Date: Sun, 29 Dec 2019 14:33:28 -0500 > From: Stephen Thorne <stephenltho...@gmail.com> > To: cnc-list@cnc-list.com > Subject: Re: Stus-List Raw Water Blocked > Message-ID: > <cafcs31okwmiodskudt6y38tdfccjv4thdflhivzeexgsi1y...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > It?s also possible the exhaust elbow has become corroded. I had to replace > one because of same issue. > > Steve Thorne > Deja Vu > >> On Sun, Dec 29, 2019 at 1:05 PM John and Maryann Read via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >> Tom >> >> What engine do you have? Fresh or raw water cooled? Common issue for >> Yanmar is exhaust riser getting plugged by carbon etc where water enters. >> Will also impact engine performance. Disconnect hose where enters exhaust >> riser. If water streams, then you have your answer. Also check the >> fitting where hose attaches to riser ? is clear?? If not, best place is >> check if any blockage at intake or strainer ? maybe something got into and >> plugged the hose?? A friend?s hose inlet has less than ideal configuration >> and frequently sucks up eel grass and such and plugs the inlet hose. >> Another culprit might be the pump impeller lost a vane and is stuck in the >> system before the strainer. >> >> >> >> Just some thoughts and good luck >> >> >> >> >> >> John and Maryann >> >> Legacy III >> >> 1982 C&C 34 >> >> Noank, CT >> >> >> >> >> >> >> >> >> >> >> >> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Tom >> Buscaglia via CnC-List >> *Sent:* Sunday, December 29, 2019 12:15 PM >> *To:* cnc-list@cnc-list.com >> *Cc:* Tom Buscaglia >> *Subject:* Stus-List Raw Water Blocked >> >> >> >> Alera has a blockage somewhere in the raw water system. Nothing out the >> exhaust. >> >> >> >> I checked the intake and the pump. Both seem fine. But, there seems to >> be no flow at the strainer. >> >> >> >> I am wondering if there is some maintenance needed for the vented loop? >> It is the next link in the chain and I?m running out of links. >> >> Tom Buscaglia >> >> S/V Alera >> >> 1990 C&C 37+/40 >> >> Vashon WA >> >> P 206.463.9200 >> >> C 305.409.3660 >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20191229/995f25fb/attachment-0001.html> > > ------------------------------ > > Message: 5 > Date: Sun, 29 Dec 2019 16:31:10 -0500 > From: Jack Fitzgerald <j...@fitzgeraldforwarding.com> > To: "C&CList" <cnc-list@cnc-list.com> > Subject: Re: Stus-List Raw Water Blocked > Message-ID: > <cajze_ajndcnf9zpkbrbtcrklwmae9mkvdkarprq-lnajg1q...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Tom > > You said: *Alera has a blockage somewhere in the raw water system. I > checked the intake and the pump. Both seem fine But, there seems to be no > flow at the strainer.* > > You likely have sucked up some trash or possibly a small fish and this > blocking the raw water intake line between the intake & the strainer. Just > my 2 cents worth having been there and done that a few times on the 43 > years that we have owned Honey > > > Best regards, > Jack Fitzgerald > S/V HONEY - US12788 > C&C 39 TM (1974) > Savannah, GA 31410 USA > > This email is protected by the Electronic Communications Privacy > Act, 18 U.S.C. Sec. 2510-2521, is confidential and may be legally > privileged. If you are not the intended recipient, you are hereby notified > that any retention, dissemination, distribution or copying of this > communication is strictly prohibited. Please reply to the sender that you > have received this message in error, then delete it. Thank you > > > > On Sun, Dec 29, 2019 at 2:34 PM Stephen Thorne via CnC-List < > cnc-list@cnc-list.com> wrote: > >> It?s also possible the exhaust elbow has become corroded. I had to >> replace one because of same issue. >> >> Steve Thorne >> Deja Vu >> >> On Sun, Dec 29, 2019 at 1:05 PM John and Maryann Read via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> Tom >>> >>> What engine do you have? Fresh or raw water cooled? Common issue for >>> Yanmar is exhaust riser getting plugged by carbon etc where water enters. >>> Will also impact engine performance. Disconnect hose where enters exhaust >>> riser. If water streams, then you have your answer. Also check the >>> fitting where hose attaches to riser ? is clear?? If not, best place is >>> check if any blockage at intake or strainer ? maybe something got into and >>> plugged the hose?? A friend?s hose inlet has less than ideal configuration >>> and frequently sucks up eel grass and such and plugs the inlet hose. >>> Another culprit might be the pump impeller lost a vane and is stuck in the >>> system before the strainer. >>> >>> >>> >>> Just some thoughts and good luck >>> >>> >>> >>> >>> >>> John and Maryann >>> >>> Legacy III >>> >>> 1982 C&C 34 >>> >>> Noank, CT >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Tom >>> Buscaglia via CnC-List >>> *Sent:* Sunday, December 29, 2019 12:15 PM >>> *To:* cnc-list@cnc-list.com >>> *Cc:* Tom Buscaglia >>> *Subject:* Stus-List Raw Water Blocked >>> >>> >>> >>> Alera has a blockage somewhere in the raw water system. Nothing out the >>> exhaust. >>> >>> >>> >>> I checked the intake and the pump. Both seem fine. But, there seems to >>> be no flow at the strainer. >>> >>> >>> >>> I am wondering if there is some maintenance needed for the vented loop? >>> It is the next link in the chain and I?m running out of links. >>> >>> Tom Buscaglia >>> >>> S/V Alera >>> >>> 1990 C&C 37+/40 >>> >>> Vashon WA >>> >>> P 206.463.9200 >>> >>> C 305.409.3660 >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://cnc-list.com/pipermail/cnc-list_cnc-list.com/attachments/20191229/ff03a418/attachment.html> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > CnC-List mailing list > CnC-List@cnc-list.com > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > ------------------------------ > > End of CnC-List Digest, Vol 167, Issue 87 > ***************************************** _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
