View Poll Results: Engine Problem on 350 Mag
Bad Head Gasket
46
32.86%
Cracked Head
35
25.00%
Cracked Block
22
15.71%
Intake Problems
5
3.57%
Other
32
22.86%
Voters: 140. You may not vote on this poll

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Poll: Guess whats wrong with my Engine.

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Old 04-29-2003, 11:58 AM
  #21
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Default Agreed

Pressure check the exhaust mainfolds while you have them off!
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Old 04-29-2003, 01:36 PM
  #22
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Quote:
Originally posted by mrv8outboard
it's because it doesn't have a pull cord to start it. he he he

I'd rather we keep that comment on the "Don't ask, don't tell" policy.
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Old 04-29-2003, 02:00 PM
  #23
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Quote:
Originally posted by mrv8outboard
it's because it doesn't have a pull cord to start it. he he he

Yeah, lets not talk about your pull start vibrater on this thread!

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Old 04-30-2003, 01:45 AM
  #24
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You can make head gaskets from a pizza box...

I would rotate the cylinder to BDC and check the cylinder wall, just in case.

Good luck!
(sounds like you lucked up on the spare heads)
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Old 04-30-2003, 09:24 AM
  #25
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Exhaust seats are bad about cracking on the small blocks if they have ever been real hot(over heat).It can also cause the head gasket to let go!

I dont think I ever saw a stock 350 blow a head gasket unless it had other related problems.

But then again you mentioned the heads had been milled.

I would take the old heads and get them magnafluxed to see if they have a cracked exhaust seat, if it does that was your problem.

If you only run in fresh water then I doubt it is an exhaust manifold unless it wasn't winterized properly.

Just my 2 cents.
 
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Old 04-30-2003, 11:17 AM
  #26
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Quote:
Originally posted by marinepro21
Exhaust seats are bad about cracking on the small blocks if they have ever been real hot(over heat).It can also cause the head gasket to let go!

I dont think I ever saw a stock 350 blow a head gasket unless it had other related problems.

But then again you mentioned the heads had been milled.

I would take the old heads and get them magnafluxed to see if they have a cracked exhaust seat, if it does that was your problem.

If you only run in fresh water then I doubt it is an exhaust manifold unless it wasn't winterized properly.

Just my 2 cents.
The old heads had been milled down, plus add a little bit of corrosion to that and you have nothing to work with. Its a fresh water boat.

Everything is back together, but we ran out of light last night so all that is left is to set the distributor, plugs, and add oil (and change the filter).

I went with Felpro gasket from AUTOZONE . Im sorry, but we have the most sorry bunch of A$$holes working at ours. They have wasted unbelievable amounts of my time, and gave me wrong parts. I returned a bunch of stuff this morning and of course it was a big hassle.
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Old 05-03-2003, 06:40 PM
  #27
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Well, finished up with some minor details today and so far she is running like a new one. I hope I can say that at the end of the season! I added mufflers/tips and its a bit quieter, but will probably keep me out of trouble in the long run........
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Old 03-05-2006, 10:15 PM
  #28
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Default Re: Poll: Guess whats wrong with my Engine.

for your sake i voted for head gskt, good luck with it, rm
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Old 03-06-2006, 08:26 AM
  #29
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Default Re: Poll: Guess whats wrong with my Engine.

Go to SUBWAY on your next motor rebuild
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Old 03-06-2006, 08:57 AM
  #30
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Default Re: Poll: Guess whats wrong with my Engine.

Also check your cylinder walls very carefully. There could be small hairline cracks in annular array around the bore.
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