SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: Aj951 on September 22, 2019, 10:29:55 AM

Title: blown 429 keeps blowing freeze plugs
Post by: Aj951 on September 22, 2019, 10:29:55 AM

hey all I keep blowing freeze plugs and im kinda dumbfounded. could there be and obstruction in the water return? or could this be a bigger issue?

Title: Re: blown 429 keeps blowing freeze plugs
Post by: 76Mantra455 on September 24, 2019, 02:46:52 PM

How long does it take to blow a freeze plug? Is the temp getting hot?

Title: Re: blown 429 keeps blowing freeze plugs
Post by: mash on it on September 25, 2019, 09:51:00 AM

Not quite enough information.
How is the cooling system plumbed?
Headers or logs and snails?
And what pump, and any mods done to the pump?
What is your water temperature at idle, and cruising?
Sounds like getting too much pressure.
Why is the question.

Dan'l

Title: Re: blown 429 keeps blowing freeze plugs
Post by: JAMES FLORES on September 05, 2020, 10:48:20 PM

Check to see if you have water in your oil, may have a headgasket issue under boost. Are you oringed? How much boost etc.

JIM

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