water jacket and exhaust rust
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=35068
Printed Date: November-17-2024 at 9:16am
Topic: water jacket and exhaust rust
Posted By: malcolm2
Subject: water jacket and exhaust rust
Date Posted: November-21-2014 at 4:51pm
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I hope I know the answer, but let me ask this question anyway.... Background:I successfully executed the "bucket method" of running the boat out of the water. And with that method, I put in 4 gallons of RV anti-freeze to winterize. Since it was my 1st time winterizing like that, with an inboard boat, I decided to open the petcocks and see how RED the fluid was. On the exhaust manifold, the antifreeze barely dripped out of the petcock so I removed the whole petcock and found about a handful of packed RUST. Drivers side was not quite as bad, but some was there. Passenger side jacket flowed well, but I inserted a stiff wire and I could "feel" and hear some rust flakes that did not come out. Question1: is there a way to stop this in the future. Question2: To clean the remaining rust, shall I open the inlet of the exhaust manifold and run water thru it this spring? |
Replies:
Posted By: 8122pbrainard
Date Posted: November-21-2014 at 5:11pm
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ALL threads regarding layup/draining mention probing for sediment. The rust/sediment that you found is normal. Hopefully you drained everything first before adding the RV. If not, then you had better check the freeze protection level with a refractometer. You can NOT tell by the color! RV is not a rust inhibitor. Don't worry about trying to flush the system. Just make sure you always probe. I suggest it may be wise for you to start over. Do tell us the refractometer reading if you decide to go that route. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: malcolm2
Date Posted: November-21-2014 at 5:30pm
| I figured the rust was natural, I just don't remember seeing that much. I looked for color, 'cause the stuff was very red, going in and very red coming out. So I figured it did not get too watered down. I used to have one of those mini turkey basters with colored balls in it. I hope that will do, cause when I google refractometer...... they cost $80? |
Posted By: TRBenj
Date Posted: November-21-2014 at 5:36pm
| If you didnt drain, start over. |
Posted By: 8122pbrainard
Date Posted: November-21-2014 at 5:44pm
NO, The only thing that will test the level of the RV is a refractometer. Ethylene glycol and propylene glycol are two different antifreeze's. The "turkey baster with the balls" works on the ethylene. RV is propylene. As I and Tim mentioned, start over. What engineering field are you involved in? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
malcolm2 wrote:Posted By: 8122pbrainard
Date Posted: November-21-2014 at 6:13pm
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From the "winterizing" thread in the FAQ thread: "pull the two plugs on either side of the engine block and remove the plugs on the back of the exhaust manifolds. On PCM engines, there is another plug in the piece connecting the hoses coming from the thermostat housing and going to the engine block. Use a coat hang wire to make sure the openings are free of rust particles and debris." ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: malcolm2
Date Posted: November-21-2014 at 9:28pm
| I am interested in comments on the amount of rust. It seems that wire poking only releases the water. If you are lucky some rust comes out. |
Posted By: 8122pbrainard
Date Posted: November-21-2014 at 9:54pm
 ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: leetudor
Date Posted: November-21-2014 at 11:19pm
This from the Prestolite website about their RV Antifreeze. Burst Protection to -50 Degrees Fahrenheit Ready to Use – Do not dilute Protection from rust and metal corrosion Non-Staining Dye Will not harm plastic (except acetate) |
Posted By: 8122pbrainard
Date Posted: November-22-2014 at 9:49am
Lee, Thanks for the facts on the Prestolite. It's good for everyone to know. I'm also glad to see they honestly state the freeze protection as a "burst" of -50 which means it actually freezes at 10 degrees but doesn't expand. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 8122pbrainard
Date Posted: November-22-2014 at 11:22pm
Clark, I forgot to ask what type of petcocks are on your engine. Hopefully they aren't the ones Skidim sells. Any pictures? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: leetudor
Date Posted: November-23-2014 at 12:02am
| When I winterize a boat, if it has petcocks in the block I will remove them and replace with a brass plug. |
Posted By: 8122pbrainard
Date Posted: November-23-2014 at 12:10am
I do the opposite!  But, I use a specific petcock where the stem is completely removable. This allows for the probing with a wire. http://s133.photobucket.com/user/brainard_bucket_bucket/media/stopcock.gif.html" rel="nofollow">  These are not the cheap "radiator" type drains. Lee, why are you removing them? Are they the cheap ones? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: leetudor
Date Posted: November-23-2014 at 12:22am
| If you are totaling removing the petcock why use it. I just place it with the plug when I remove the petcock for probing. |
Posted By: Gary S
Date Posted: November-23-2014 at 12:42am
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I got those from McMaster-Carr on Pete's recomendation on my Mustang. They are great,I'll actually open them up once and awhile when it's running so it flushes out. Mine stays real clean but I have seen muddy water come out once. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: 8122pbrainard
Date Posted: November-23-2014 at 9:37am
Lee I didn't say I remove the petcock. The stem is removable by hand!
Are you removing the cheap ones? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: leetudor
Date Posted: November-23-2014 at 9:44am
I am a equal opportunity remover and remove all. 
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Posted By: 8122pbrainard
Date Posted: November-23-2014 at 10:01am
Yes, you have stated you remove them but haven't said why? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: leetudor
Date Posted: November-23-2014 at 10:19am
Yes I did, look at post 14 or so. |
Posted By: 8122pbrainard
Date Posted: November-23-2014 at 10:35am
This must be the statement you are referring to?
And then I stated I don't remove the petcock but rather just the stem and by hand.
You must be finding the cheap ones? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: leetudor
Date Posted: November-23-2014 at 11:04am
| With a petcock the blockage is more than likely in the bushing that is screwed in to the engine block not the engine block itself. If you replace the complete petcock assembly with a plug that is as deep as the casting wall or a bit longer the hole will not clog. |
Posted By: 8122pbrainard
Date Posted: November-23-2014 at 1:21pm
It's a pleasure to know you know your http://www.jgbhose.com/technical-reference-literature/normal-engagement-length.asp" rel="nofollow - NPT thread engagment ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: malcolm2
Date Posted: November-24-2014 at 6:45pm
All 5 of mine are like this. To probe the "T" needs to be totally removed. I was really concerned with the amount of rust I found. No one seems to be mentioning HOW MUCH, just that it is expected. I suppose, in the future, I will do like some have mentioned and open these little ports during the summer and get some out. |
Posted By: Hollywood
Date Posted: November-24-2014 at 6:49pm
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It varies. We all have different aged engines, cooling systems, water quality and usage. Many are often surprised the first time they pull the plugs. Year after year I only get a small handful of flakes from my cast iron pyramid PCM manifolds. Block is always clean as a whistle. ------------- |
Posted By: rebel skier
Date Posted: November-24-2014 at 7:26pm
| This was my first year to have and winterize this boat. I was also surprised by the rust out of the exhaust manifold. The opening is large enough to put a finger in there and feel around, and feel some of the loose particles of rust on the bottom of the manifold. My block drained pretty darn clear, comparable to my other boat. |
Posted By: Hollywood
Date Posted: November-24-2014 at 7:32pm
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That's a good way to cut your finger. Use a hose pick. ------------- |
Posted By: rebel skier
Date Posted: November-24-2014 at 7:40pm
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If all goes well, that won't be necessary because I will put 50+ hours worth of lake water through the manifolds next year and flush the rust right out of there while getting buoys, riding on the boom, etc! :) |
Posted By: malcolm2
Date Posted: November-25-2014 at 12:14am
| Hey, good to hear from another Tennessean. We spend most of our boating days on Priest. Not many Nautiques in this area... Welcome to the fun. |
Posted By: rebel skier
Date Posted: November-25-2014 at 12:44am
| If you launch at 7 points I have seen you. I was not in my Nautique though, did not own it yet, but in a 19 foot Stingray. That is going to be the family boat. The Nautique is my toy! |
Posted By: malcolm2
Date Posted: November-25-2014 at 1:43am
7 points is the place most of the time. I put a big T and a name on mine a couple of years ago. I had a close up, but can't find it. 
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Posted By: rebel skier
Date Posted: November-25-2014 at 8:43am
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We have been at the ramp at the same time. I have admired your boat and had Nautique envy disease. It is now cured :) Happy Thanksgiving, Richard |
Posted By: malcolm2
Date Posted: November-29-2014 at 4:01pm
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Results of the refractometer are as follows: 1.036 specific gravity 46%ppt = what temp to freeze? I understand the RV anti-freeze I used had an SG of 1.039 so would that be 99.X% of -50* or -49.9*F? should be fine with GLOBAL WARMING and all.  Let me know your thoughts? HAPPY FESTIVUS TO ALL! 
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Posted By: malcolm2
Date Posted: November-30-2014 at 2:39pm
Comment? Where are the comments? Maybe "my kind of" engineer ain't so dumb afterall. 
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Posted By: 8122pbrainard
Date Posted: November-30-2014 at 3:15pm
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Clark, It sure looks like you got most of the water out. I just hope there aren't any low pockets of water where the RV didn't mix in since the RV is designed to be used full strength. Getting all the water out first is the concern. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |