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Big_Baller 09-24-2022 07:50 AM

Cracked manifold ?
 
Well just got my Baja running on the new engine / blower set up but it seems like excessive steam / vapor ? This was running on ~50 degree water from hose (we are on a well) and temperature was in the 50s. Does this seem normal or should I be looking for another set of manifolds over the winter ?


Thanks,
Nick

DrFeelgood 09-24-2022 08:05 AM

Seems like a bit much especially if that was a cold start. Pressure test of manifolds would be best way to know if they're leaking or not.


Big_Baller 09-24-2022 08:10 AM

It was warm, I was playing with the tune and idle a bit so wife grabbed a video after one of the starts. Would a pressure test be about the same as testing for boost leaks in a car? Cap all water ports and make sure it holds pressure up to 40-50psi?

Unlimited jd 09-24-2022 08:37 AM

That’s pretty normal for well water going through a warm engine.
I normally pressure test headers at 40 psi

DrFeelgood 09-24-2022 08:48 AM

Yeah, if it was warm then I don't think I'd be too worried about that. Can't hurt to pressure test anyway.

Yes, cap all the ports, bleed air out at the highest port so there's no air space left, then pressurize.

F-2 Speedy 09-24-2022 08:54 AM

careful reving the engine suck the hose dry you'll be rebuilding the sea pump.....

Big_Baller 09-24-2022 10:42 AM


Originally Posted by F-2 Speedy (Post 4846055)
careful reving the engine suck the hose dry you'll be rebuilding the sea pump.....

hose goes into about a 2gal sea strainer, engine had water the entire time. But its one of the items I replace every spring.

Big_Baller 09-24-2022 10:51 AM


Originally Posted by DrFeelgood;[url=tel:4846049
4846049[/url]]Yeah, if it was warm then I don't think I'd be too worried about that. Can't hurt to pressure test anyway.

Yes, cap all the ports, bleed air out at the highest port so there's no air space left, then pressurize.

oh interesting you pressure test with water. I was going to todo air like i would on my car. That way if it leaks air goes into the cylinder not water. Should net same results right?

Griff 09-24-2022 11:21 AM

I don't think that is excessive steam for water and air temps in the 50's.
It doesn't look like you have very much water coming out the exhaust though.

Unlimited jd 09-24-2022 11:44 AM


Originally Posted by Big_Baller (Post 4846062)
oh interesting you pressure test with water. I was going to todo air like i would on my car. That way if it leaks air goes into the cylinder not water. Should net same results right?

we do them with water, but take them off the engine.


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