Engine Zincs

Bertram Brad · Post by **Bertram Brad** » Mon Aug 23, 2010 5:02 pm

Sorry to be such a newbie here. I have a 33 SF with twin 3208T. I'm wondering if anyone can tell me how many, and where, and possibly the size of the engine zincs? I opened up the genset zinc this weekend and it was 98% gone. Not broken off, but gone so I need to check the engines sooner rather than later. Thanks for any help.

Post by **dougl33** » Mon Aug 23, 2010 6:00 pm

No need to apologize. We all need to start somewhere. I have Cummins, but I'm sure a Cat owner will chime in. Welcome aboard. What year is your boat?

Bertram Brad · Post by **Bertram Brad** » Mon Aug 23, 2010 8:21 pm

1979 w/ serial nums 1z0 (I think. I will have to confirm.)

buzzk · Post by **buzzk** » Tue Aug 24, 2010 2:45 am

Welcome, I have Cummins but my manual has the information in it. Have you looked in your manual? If you don't have the manual it may be something you may want to pick up for in the future. Buzz

Bertram Brad · Post by **Bertram Brad** » Tue Aug 24, 2010 12:25 pm

I may need to find a manual. I don't believe it was included with all the other component manuals. I bought a parts manual for the engines, but it doesn't list the zincs.

Post by **dougl33** » Tue Aug 24, 2010 3:24 pm

You could also try boatdiesel.com

buzzk · Post by **buzzk** » Tue Aug 24, 2010 4:31 pm

Have you given your local Cat Dealer a call. I'm sure their parts department could tell you. Look on Ebay for a manual I found one cheap for a Detriot one time. Buzz

buzzk · Post by **buzzk** » Tue Aug 24, 2010 4:34 pm

Have you tried taking them out and going to your local marine supply and matching them up? Are they so far gone that you can't tell how long they used to be? Buzz

Bertram Brad · Post by **Bertram Brad** » Tue Aug 24, 2010 5:09 pm

I don't know the location of them yet to check. From the research I've done there are probably one in each Heat Exchanger and possibly a couple more. I will check with the CAT parts place tomorrow.

Sean B · Post by **Sean B** » Tue Aug 24, 2010 6:55 pm

One large and two small zincs in each heat exchanger. These are in the end caps. Learn their location and visit them often. That's it... unless you have raw-water fed gear coolers, and if so there should be a zinc in that. I have the engine-water fed gear coolers (and suspect bertram did them all this way) so mine don't have gear cooler zincs. I've heard of zincs in the exhaust elbow. However my factory stainless steel elbows did not have them, and my new custom elbows don't either.

CB35 · Post by **CB35** » Wed Aug 25, 2010 4:36 am

As Sean said one big one on the left hand side at the bottom of the end cap. The right side may or may not have two small pencil zinc. The gear may or may not have a zinc. If it does the bolt head is easy to see. My 3208 cats only have one zinc in the heat exchangers

Jose Jaen · Post by **Jose Jaen** » Wed Aug 25, 2010 3:33 pm

Hi Brad. Let me have an e-mail or fax #, IÂ´ll send you the pertinent manual pages. Jose Jaen "Blue Chip" 1993 33FBC Miami FL [img]http://www.bertram33.com/photogallery/p ... p_Jaen.jpg[/img]