Official Cummins QSC-500 Thread

Now on your last point on the brass. If I only use this to flush and then replace the cap after would that matter? I am talking flushing each engine maybe twice a week. But even tho it is a pain I have nothing else to do so I take off the cap and replace it with this one.
ON the flat surface I thought you had said it wasnt flat. Maybe I read it somewhere else. I put a coin on it and it looks flat.
Thanks for the reply!
Sorry, I thought you were going to leave the cap with the flush fitting in place full time. If it's removed, then I'm sure the brass is fine. And if your caps are flat, sounds like the thru hull fitting idea would work if you want.
 
It’s not a dumb question. I run one engine at a time at idle, seacock is OPEN. The result is flushing with about 80-90% fresh water circulating. That is to flush after use. When winterizing, there is a five gallon bucket hooked up filled with non-tox anti freeze and the seacock is closed. I use a total of 6 gallons per engine.
I have also made a single smaller strainer cap for the purpose of winterization of the generator and A/C. All gravity fed, close the sea cocks on both, start the generator and draw in 2 gallons of non-tox antifreeze, and then move it to the A/C strainer, run it until it takes in 3 gallons of antifreeze which is when I see red at the discharge ports. Easy peezy, and never a drop of antifreeze is spilled.

I watched the vido on SBMAR on flushing and thnk the way you mention is the way to go. However My hose pushes strong and is hard to adjust. I had read somewhere that you dont want it to come in full speed. Now that was one post on another site. But ready to get this done and test it out next week! Thanks for everyones help on this project
 
Looking for direction/opinions on the pencil engine zincs, do you install new ones each year or have you eliminated them? I have heard to schools of thought on this. I have been changing mine every year but am leaning towards removing them.

Fire away :D
 
Looking for direction/opinions on the pencil engine zincs, do you install new ones each year or have you eliminated them? I have heard to schools of thought on this. I have been changing mine every year but am leaning towards removing them.

Fire away :D

Change every year.
Why would you eliminate them? Am I missing something?
 
Why would you get rid of the engine zincs? They are very important to protect the engine.

I change mine annually at minimum, and check the fuel - oil cooler zincs more often. Since those are smaller E-1G zincs they are wear much faster than the large E-2 zincs in the aftercooler and HX.
 

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Finally finished my homemade flusher using the perko cap I ordered and parts from home depot
Nice job, it looks great. What did you use to connect to the cap? Did you tap and thread or drill a hole and use a thru hull?
 
Finally finished my homemade flusher using the perko cap I ordered and parts from home depot

If your strainer basket handles come as close to the bottom of the cap as mine does, you'll have to remove the baskets when you use those caps, which is why I replaced the nipples in the ones I fabricated with bronze thru hull fittings like Lawndr recommended. They have a lower profile which is important to my application, since my caps will remain in place permanently.
Before I install them, I may cut the thread down an inch to bring the valve closer to the cap.
 

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If your strainer basket handles come as close to the bottom of the cap as mine does, you'll have to remove the baskets when you use those caps, which is why I replaced the nipples in the ones I fabricated with bronze thru hull fittings like Lawndr recommended. They have a lower profile which is important to my application, since my caps will remain in place permanently.
Before I install them, I may cut the thread down an inch to bring the valve closer to the cap.
That makes sense but how about if I clip the part of the strainer that you grab on to to pull it up? I can clip out an inch or so and still easily be able to pull it up? Also I didnt plan on keeping it in there the whole time just put on/off when flushing. It takes a little more time but I have lots of time on my hand. Would that work ? Just looked at your picture. Very nice! I wish I had done that. But should be ok
 
Nice job, it looks great. What did you use to connect to the cap? Did you tap and thread or drill a hole and use a thru hull?
I had someone do it. Initially was going to thread it but instead he drilled it and we used a thru hull type part with rubber washer and hex nut underneath and rubber washer on top for seal,
 
That makes sense but how about if I clip the part of the strainer that you grab on to to pull it up? I can clip out an inch or so and still easily be able to pull it up? Also I didnt plan on keeping it in there the whole time just put on/off when flushing. It takes a little more time but I have lots of time on my hand. Would that work ? Just looked at your picture. Very nice! I wish I had done that. But should be ok

I assume you'll be leaving your main raw water intake valve open during flushing therefore, you'll want to keep the strainer in place. You could cut down the length of the nipple so that it doesn't protrude too far in, or cut a piece out of the strainer handle and bring the ends back together, which would lower it. If you could then get someone to weld the seam, even better.
 
I assume you'll be leaving your main raw water intake valve open during flushing therefore, you'll want to keep the strainer in place. You could cut down the length of the nipple so that it doesn't protrude too far in, or cut a piece out of the strainer handle and bring the ends back together, which would lower it. If you could then get someone to weld the seam, even better.
Yes I will be leaving strainer in place since I plan to leave seacock to thru hull intake open. From what I have read and seen on sbmar videos you still get 80% fresh water in it. Then cut back strainer handles and bring ends back together and secure it so it wont cut me etc. Or like you said weld them back together lower The other option like you mentioned was cut back the nipple. Will see how this works. All of these ideas came from this site which is so awesome and has helped me with so many ideas. Love it
 
Thinking of switching from Valvoline Blue to Shell Rotella this year. What are you guys using T4 or T5?
 

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