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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Gas > Atomic 4
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  #1  
Old 05-29-2013
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A4 first start success...but water leaking from bronze pieces

I just finished my A4 rebuild and finally got it started this past weekend. I noticed that after the motor came to temp, that water began to seep out of the round bronze pieces on the top of the head and front of the block...any idea why this is happening? Is it detrimental? How do I stop it?

A4 first start success...but water leaking from bronze pieces-engine-pic.jpg

Thanks guys,

Chris
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Old 05-30-2013
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Re: A4 first start success...but water leaking from bronze pieces

If you've rebuilt the engine you must be familiar with Moyer Marine.. I'd give them a call.

Are those frost plugs???
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Old 05-30-2013
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Re: A4 first start success...but water leaking from bronze pieces

yes the plug will have to be removed, you can drill a hole in the center and pop it out with a screwdriver

and then clean up the hole as best as possible and hopefully a new plug will seal without needing to resort to goop
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Re: A4 first start success...but water leaking from bronze pieces

My dad would dump black pepper in the coolant.. he came from the depression era though.. funny thing, it does work doesn't smell too bad either.
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Re: A4 first start success...but water leaking from bronze pieces

Black pepper...that's interesting...how will this help stop the leaking plugs? Will it fill in the small voids? Is there any risk of damaging the motor?

I am trying to avoid having to drill and replace the plugs if possible...just means even MORE delay in hitting the water this season.

Thanks for all the input!

Chris
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Re: A4 first start success...but water leaking from bronze pieces

It is a cheep part and a fast repair

The black pepper is a get home Band-Aid as that leak is only going to get bigger as the leak rusts up the hole even worse
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Re: A4 first start success...but water leaking from bronze pieces

Chris were the freeze plugs removed for the rebuild? If it's leaking imho it's already rusty and needs replacement seems to me most freeze plugs are put in reverse to what yours is showing.
Tommays is there an expansion type plug that he could get?
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Re: A4 first start success...but water leaking from bronze pieces

It is just a curved disk not like the cups with more sealing area on the sides like newer stuff

You clean things up and see how it looks and the new one could be thumped flat with a socket and plastic hammer

If there is obvious corrosion and it will not seal then it would become goop time like blue RTV
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Re: A4 first start success...but water leaking from bronze pieces

Moyer Marine Online Store
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Re: A4 first start success...but water leaking from bronze pieces

They used to make some rubber ones .marc
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