Same as the after filter gage On Fri, May 29, 2020, 10:42 Wade Glew via CnC-List <cnc-list@cnc-list.com> wrote:
> Can you link me to a pic of what the pre filter vacuum guage might look > like? > Wade Oh Boy 33-2 > > On Fri, May 29, 2020, 9:10 AM Della Barba, Joe via CnC-List, < > cnc-list@cnc-list.com> wrote: > >> FYI – it doesn’t hurt to use 2 vacuum gauges, one before the filter and >> one after. I was experiencing high vacuum and shutdowns and after I >> installed the second gauge, I found high vacuum on BOTH of them. It wasn’t >> the filter that was clogged, it was the pickup tube in the tank. The >> filter’s contribution to the problem is the difference between the gauges ;) >> >> My clog turned out to be rubber pieces from the fuel fill hose, it was >> slowly dissolving and dropping bits of rubber into the tank. Sometimes they >> would suck onto the fuel pickup and sometimes they would drop back off. >> >> >> >> *Joe Della Barba Coquina C&C 35 MK I* >> >> *www.dellabarba.com <http://www.dellabarba.com>* >> >> >> >> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Wade >> Glew via CnC-List >> *Sent:* Friday, May 29, 2020 9:52 AM >> *To:* cnc-list@cnc-list.com >> *Cc:* Wade Glew <wadeg...@gmail.com> >> *Subject:* [EXTERNAL] Re: Stus-List Diesel Filter >> >> >> >> thanks for this Josh >> >> Wade >> >> Oh Boy 33-2 >> >> >> >> On Sun, May 24, 2020 at 11:16 PM Josh Muckley via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >> Wade, >> >> >> >> Look at the picture of a 500 series racor in the link below. The factory >> top has a t handle which is used to tighten the lid. The vacuum gauge >> which Joe linked replaces that t-handle. The t arms are not used to sense >> pressure - just for tightening the lid. >> >> https://www.ebay.com/itm/172954061164 >> >> >> >> BTW: these 500 series are notorious for being easily over tightened which >> warps the lid and causes leaks. >> >> >> >> The 500 series is 60gph which would be close to 60 times the flow >> capacity required for any one of our engines. Even with a 2 micron filter >> I would not expect much if any vacuum being formed, though it should be >> noted that the vacuum represents the effort required to "lift" the fuel out >> of the tank AND the effort required to suck the fuel through the filter. >> Yanmar typically rates their engines for up to 10 feet of lift. Diesel is >> 34" per psi so 10 feet = ~3.5 psi. Even with no filter element installed >> the vacuum for 10 feet of vertical lift of diesel fuel would amount to 100 >> inH2O, 3.5psia or 7 inHg. >> >> >> >> Josh Muckley >> >> S/V Sea Hawk >> >> 1989 C&C 37+ >> >> Solomons, MD >> >> >> >> >> >> On Sun, May 24, 2020, 23:03 Wade Glew via CnC-List <cnc-list@cnc-list.com> >> wrote: >> >> Hi Joe >> >> Looking at the guage you've linked to, its obvious the "T" arms go in the >> fuel line between the Racor and engine. Where does the threaded base of the >> T go? What is a normal pressure? What pressure reading makes you decide to >> change filters? Are the lined just clamped with small hose clamps or what? >> >> Wade >> >> Oh Boy 33-2 >> >> >> >> On Sun, May 24, 2020, 17:15 Joe Della Barba via CnC-List, < >> cnc-list@cnc-list.com> wrote: >> >> A vacuum gauge is one of the best cost/benefit ratio improvements you can >> do. You can save a lot of $$$ in unneeded filter changes and get advanced >> warning when you do need to change one. >> >> Be official: >> >> >> https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=racor+gauge&_sacat=0 >> >> Cockpit mount with light: >> >> https://moyermarine.com/product/vacuum-gauge-kit-gaug_07-1_532/ >> <https://protect2.fireeye.com/v1/url?k=b7f37aed-ea80e98c-b7f3539a-ac1f6b44e86e-4c178e1e039dd85e&q=1&e=7cb8c88e-efc3-44b3-82bf-4503afac93d7&u=https%3A%2F%2Fmoyermarine.com%2Fproduct%2Fvacuum-gauge-kit-gaug_07-1_532%2F> >> (also can be used for manifold vacuum) >> >> Cheap: >> >> >> https://www.ebay.com/itm/2-1-2-Vacuum-Gauge-Chrome-Plated-Steel-Case-1-4-NPT-Lower-Mnt-30-inHg-0/183642544745?hash=item2ac1f2da69:g:2gUAAOSwJiBcQOWz >> >> >> https://www.ebay.com/itm/LIQUID-FILLED-VACUUM-GAUGE-30-0-PSI-2-5-FACE-1-4-NPT-LOWER-MOUNT-WOG/192746480989?hash=item2ce095e55d:g:RiQAAOSwqoxcBW9S >> >> >> >> Joe Coquina C&C 35 MK I >> >> >> >> On 5/24/2020 3:39 PM, bwhitmore via CnC-List wrote: >> >> Time and again I have read that Yanmar does not recommend a 2/3 micron >> primary filter. I therefore use a 10 micron, and use Biobar, as well as >> some Seafoam. I have some old crud in my tank, but where I can see it >> through the hole for the sender, the bits I can see are pretty well stuck >> to the bottom of the tank (and there are not many of them). That said, the >> boat had sat at the dock for +/- 6 years before I got her, and we have run >> 150 gallons or so of fuel through the boat in the last 4 years. >> >> >> >> I change my Racor every year, and I used to change the one on the engine >> every year as well. This time, I'm going to let the engine mounted one go >> another year. We still get a fine layer of black "grit" at the bottom of >> the racor over the year, but it does not appear to hinder the running of >> the engine. >> >> >> >> I'd rather swap out a $20 filter once a year than risk the engine >> shutting down as I go through a bridge opening with 3 kts. of current. >> >> >> >> To each their own, >> >> >> >> Bruce >> >> >> >> >> >> _______________________________________________ >> >> 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 >> >> _______________________________________________ >> >> 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 >> >> _______________________________________________ > > 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 > >
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