On Wed, 23 Jul 2008 18:44:37 GMT, Short Wave Sportfishing
wrote:

On Wed, 23 Jul 2008 08:28:39 -0700, JR North
wrote:

. Now I get to pull the heads......
Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
that down time, a seized valve is not unusual.

Triple ****.

Oh - whoops. :)

Well, hey, look at it this way - as long as you have the heads off,
look around for cylinder scoring, slop, etc.

Hell, might be time for a new engine. :)

(At least that's what I'd be telling SWMBO) :)

Hey, ain't you supposed to be fishing?

--Vic

"Vic Smith" wrote in message
...
On Wed, 23 Jul 2008 08:28:39 -0700, JR North
wrote:

As you will recall, In our last episode, I was preparing to install the
new starter in my Merc. 5.0. I did a compression test with the old
starter in place, 150 all around. After sitting 2 weeks, the new starter
is in; I cranked it with the plugs out (no manifolds installed yet) And
it spun 3 revolutions with a *Clack* every 360?. I thought in this brief
time that possibly a tooth was sheared on the flywheel ring, but after 3
revolutions the engine locked and would not turn. ****. I was thinking
maybe a socket I had holding the Qjet choke open had somehow fallen into
the intake manifold and wedged an intake valve open. Ok. I put a chain
wrench on the balancer and found I could rotate the engine backwards,
but would lock at the same point forwards. I pulled the valve covers,
expecting to find an offending intake valve hung open, with slop in the
rocker arm as a result. Found it, alright, but an exhaust valve, not
intake. Feeling up the #4 exhaust port with my finger, I can feel the
broken end of the exhaust valve stem. The valve head is loose in the
combustion chamber, preventing the piston from reaching TDC. DOUBLE
****. In the 2 weeks since the compression test, the #4 exhaust valve
seized in the guide, and on cranking, because the valve is at an angle
with the piston, was broken off. Now I get to pull the heads......
Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
that down time, a seized valve is not unusual.
JR

That's weird, since you were cranking it 2 weeks ago.
What do you suppose caused it to seize?
I've never heard of that happening on a 305, but you say that's
not unusual.
I'd like to hear the autopsy report after the stem is driven from the
guide.
This boating stuff is starting to scare me.

--Vic

Salt water in the valve guides.
Rebuilders won't touch heads from sal****er boats.

Surprised me too. No way I'm gonna just pull one head, your 3/4 way
there pulling one as two, and wouldn't want a valve to seize in the
other head later(when the engine is running...). I'm just gonna yank 'em
both and go through them.
JR


wrote:




That's disappointing. You put some oil in it when you took the
manifolds off so I'd have hoped for better. Next question is what did
that piece of valve do to the cylinder and piston top. Going to pull
both heads or just the problem one? Your compression sounds good.
I'd be tempted to just replace the valve and go but 500 hours is a bit
of time....... Makes me glad I boat on a lake, no salt water.

--
--------------------------------------------------------------
Home Page: http://www.seanet.com/~jasonrnorth

On Jul 23, 1:54*pm, wrote:
On Jul 23, 2:02*pm, Tim wrote:





On Jul 23, 10:38*am, wrote:

On Jul 23, 11:28*am, JR North wrote:

As you will recall, In our last episode, I was preparing to install the
new starter in my Merc. 5.0. I did a compression test with the old
starter in place, 150 all around. After sitting 2 weeks, the new starter
is in; I cranked it with the plugs out (no manifolds installed yet) And
it spun 3 revolutions with a *Clack* every 360°. I thought in this brief
time that possibly a tooth was sheared on the flywheel ring, but after 3
revolutions the engine locked and would not turn. ****. I was thinking
maybe a socket I had holding the Qjet choke open had somehow fallen into
the intake manifold and wedged an intake valve open. Ok. I put a chain
wrench on the balancer and found I could rotate the engine backwards,
but would lock at the same point forwards. I pulled the valve covers,
expecting to find an offending intake valve hung open, with slop in the
rocker arm as a result. Found it, alright, but an exhaust valve, not
intake. Feeling up the #4 exhaust port with my finger, I can feel the
broken end of the exhaust valve stem. The valve head is loose in the
combustion chamber, preventing the piston from reaching TDC. DOUBLE
****. In the 2 weeks since the compression test, the #4 exhaust valve
seized in the guide, and on cranking, because the valve is at an angle
with the piston, was broken off. Now I get to pull the heads......
Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
that down time, a seized valve is not unusual.
JR

Man, that's quite the saga, but that's the way it goes sometimes.- Hide quoted text -

- Show quoted text -

Hey loog-meister, I know you don't need one, but just for the fun of
it I called about the price of a brand new starter for your v-4
(85-115 hp.) *Evinrude and it costs me $51.00 + shipping not bad, eh?- Hide quoted text -

- Show quoted text -

I have a 1988 evinrude 25 hp that needs a starter. .what kind of price
can you get on one of those?- Hide quoted text -

- Show quoted text -

Pricing on outboards vary from warehouse to warehouse, and J&N has
them on *special* right now. Regularly my cost is $58.80 but this
month they're on the sales flier for $51.50 plus shipping. You need,
m'man, I'll get it headed your direction. Of course thats only one of
the warehouses I'm tied in with. others may be a tad (pennies) more,
or a tad (pennies) less, but still .....

What gets me is loogy's starter is bigger (not much) but is the same
pricing +/- , I think because the v-4's are more popular....

Well, you can't go wrong pulling both. Except for another $45 head gasket.
I've occasionally flat rated the job by loosening the intake bolts on the
other side and taking the problem head off without removing the intake. But
there's the risk of a vacuum leak on the other side. And then you end up
pulling it anyway.

"JR North" wrote in message
.. .
Surprised me too. No way I'm gonna just pull one head, your 3/4 way there
pulling one as two, and wouldn't want a valve to seize in the other head
later(when the engine is running...). I'm just gonna yank 'em both and go
through them.
JR


wrote:




That's disappointing. You put some oil in it when you took the
manifolds off so I'd have hoped for better. Next question is what did
that piece of valve do to the cylinder and piston top. Going to pull
both heads or just the problem one? Your compression sounds good.
I'd be tempted to just replace the valve and go but 500 hours is a bit
of time....... Makes me glad I boat on a lake, no salt water.

--
--------------------------------------------------------------
Home Page: http://www.seanet.com/~jasonrnorth

On Wed, 23 Jul 2008 15:10:12 -0400, Gene Kearns
wrote:

On Wed, 23 Jul 2008 18:44:37 GMT, Short Wave Sportfishing penned the
following well considered thoughts to the readers of rec.boats:

|On Wed, 23 Jul 2008 08:28:39 -0700, JR North
wrote:
|
|. Now I get to pull the heads......
|Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
|that down time, a seized valve is not unusual.
|
|Triple ****.
|
|Oh - whoops. :)
|
|Well, hey, look at it this way - as long as you have the heads off,
|look around for cylinder scoring, slop, etc.
|
|Hell, might be time for a new engine. :)
|
|(At least that's what I'd be telling SWMBO) :)

Goal: Plausible Deniability.......

Damn straight.

That's how I got my ETEC. :)

A little fudging here, a little truth twisting there - bingo.

New engine. :)

On Wed, 23 Jul 2008 14:25:11 -0500, Vic Smith
wrote:

On Wed, 23 Jul 2008 18:44:37 GMT, Short Wave Sportfishing
wrote:

On Wed, 23 Jul 2008 08:28:39 -0700, JR North
wrote:

. Now I get to pull the heads......
Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
that down time, a seized valve is not unusual.

Triple ****.

Oh - whoops. :)

Well, hey, look at it this way - as long as you have the heads off,
look around for cylinder scoring, slop, etc.

Hell, might be time for a new engine. :)

(At least that's what I'd be telling SWMBO) :)

Hey, ain't you supposed to be fishing?

I was - you wanna make the trip down here and go with? :)

Short Wave Sportfishing wrote:
On Wed, 23 Jul 2008 15:10:12 -0400, Gene Kearns
wrote:

On Wed, 23 Jul 2008 18:44:37 GMT, Short Wave Sportfishing penned the
following well considered thoughts to the readers of rec.boats:

|On Wed, 23 Jul 2008 08:28:39 -0700, JR North
wrote:
|
|. Now I get to pull the heads......
|Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
|that down time, a seized valve is not unusual.
|
|Triple ****.
|
|Oh - whoops. :)
|
|Well, hey, look at it this way - as long as you have the heads off,
|look around for cylinder scoring, slop, etc.
|
|Hell, might be time for a new engine. :)
|
|(At least that's what I'd be telling SWMBO) :)

Goal: Plausible Deniability.......

Damn straight.

That's how I got my ETEC. :)

A little fudging here, a little truth twisting there - bingo.

New engine. :)


I thought that eTec was fifth prize in a beauty contest. First prize was
a weekend in Philly.

On Wed, 23 Jul 2008 22:09:09 GMT, Short Wave Sportfishing
wrote:

On Wed, 23 Jul 2008 14:25:11 -0500, Vic Smith
wrote:

On Wed, 23 Jul 2008 18:44:37 GMT, Short Wave Sportfishing
wrote:

On Wed, 23 Jul 2008 08:28:39 -0700, JR North
wrote:

. Now I get to pull the heads......
Oh well, the engine is 18 years old, has 495 Hrs on it, and with all
that down time, a seized valve is not unusual.

Triple ****.

Oh - whoops. :)

Well, hey, look at it this way - as long as you have the heads off,
look around for cylinder scoring, slop, etc.

Hell, might be time for a new engine. :)

(At least that's what I'd be telling SWMBO) :)

Hey, ain't you supposed to be fishing?

I was - you wanna make the trip down here and go with? :)

I'll give you three guesses.
Wait, that's yes/no so you get only two guesses.
I'll make it easier. Yes, and I would if I could.

--Vic

--Vic

On Wed, 23 Jul 2008 15:46:59 -0400, "Jim" wrote:



Salt water in the valve guides.
Rebuilders won't touch heads from sal****er boats.

That sort of cuts down your options, don't it?
But why is that? I can see how the SW cooled heads might have
more of the passages eaten away, but they could grind, revalve,
respring, and reguide with no problem. Just make it clear future
cracks aren't warranteed, same as any head rebuild.
Anyway, I'm only batting .500 with shop work on heads.
I don't know anything about those boat engine manifolds, but I guess
that's how the salt got in the guides.
The other thing that doesn't make sense to me is how the piston hit
the valve, because I thought that engine was non-interference.
Couldn't find that's a fact anywhere though, so maybe I'm missing
something.
Seems like there's big differences between car and boat engines.
Think I'll get an O/B.

--Vic