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DH9441
11-12-2012, 09:42 PM
Ok this is embarrsing but where are the pepcocks on this engine. 351W? This is my 7th boat but my first inboard.

Cloaked
11-12-2012, 09:58 PM
Ok this is embarrsing but where are the pepcocks on this engine. 351W? This is my 7th boat but my first inboard.You should remove five plugs and one hose:
(1) Starboard side of the block (near front)
(1) Port side of the block (near rear)
(2) Right and left exhaust manifold (under the riser exhaust hose connection) use 1/2" drive ratchet to remove
(1) J-tube connection on front of engine (reach under and you'll feel it there)

Also remove the lower hose from the transmission cooler.

.

homer12
11-15-2012, 09:13 AM
Never heard of the j-tube connection? Maybe I'm ignorant here, but what's the j-tube?

east tx skier
11-15-2012, 11:09 AM
If you're looking at the front of the engine, it's left of the crank. There's a piece of hose coming off the t-stat that connects to it.

http://www.nautiqueparts.com/images/products/detail/R024001.jpg

homer12
11-15-2012, 11:49 AM
Ah, thanks east tx

tph
11-15-2012, 01:02 PM
Never heard of the j-tube connection? Maybe I'm ignorant here, but what's the j-tube?

Here's a picture of it installed:

Lumbergh
11-15-2012, 01:23 PM
Nice sparkling bilge, especially white!

tph
11-15-2012, 02:33 PM
Nice sparkling bilge, especially white!

Thanks. It's actually light grey but that's equally difficult to keep clean.

Kevin&Annie
11-15-2012, 04:10 PM
Did you remove the paint from your engine? Ours is flaking really bad. I noticed how easily it comes off when i used degreaser on the tranny. (The boat had leaking valve covers when we bought it) I like the look of yours. Nice and clean.

tph
11-15-2012, 09:24 PM
Did you remove the paint from your engine? Ours is flaking really bad. I noticed how easily it comes off when i used degreaser on the tranny. (The boat had leaking valve covers when we bought it) I like the look of yours. Nice and clean.

Thanks. No, I haven't removed the paint. It's a Pleasurecraft engine. They came painted silver. Here's another angle:

madcityskier
11-17-2012, 11:54 AM
Electronic ignition, valve covers... What else have you done? Looks great.

DH9441
11-17-2012, 08:10 PM
Ok, so back the the winterized Q. The exhaust manifolds...what is the risk if I don't remove that HUGE plug. I've never seen a rachet screw plug thing... that big. I can tell both have never been out.

Rockman
11-17-2012, 08:24 PM
You should be able to use a 1/2 ratchet without a socket on the end...

Be careful when you start removing plugs...you do not want to break anything off half way out...likewise when you are putting them back in...go slow and make sure you have grabbed the threads correctly...nothing like messed up threads...major headache to fix.

DH9441
11-17-2012, 08:37 PM
Right--- They look a bit rusty. I'd prefer to leave 'em alone.

barefoot
11-17-2012, 08:45 PM
The other option is to run antifreeze through the engine.

Cloaked
11-17-2012, 08:56 PM
Right--- They look a bit rusty. I'd prefer to leave 'em alone.
To summary your options already stated here... remove the plugs or put antifreeze in the engine. Otherwise, you'll have one or more cracked riser(s) in the spring if it freezes hard.

Look, remove the plugs and put new ones in it. Those are the easiest of all of the plugs to remove, even when crapped up. Slow and easy. It takes all of 5 seconds with a counterclockwise turn....

New plugs with never-sieze.....

However, it's each to their own... I like pictures of cracks in heads and risers... They look good when mag tested...

.

DH9441
11-18-2012, 07:08 PM
I got cha Ok TY TY....plugs are coming out.

tph
11-19-2012, 03:36 PM
Electronic ignition, valve covers... What else have you done? Looks great.

Thanks. Braided hose covers with polished stainless clamps, some chromed parts, wire looms...all cosmetic. I used to show the boat at west coast reunions in the old days. I thought about an edelbrock performer intake but it runs so well I didn't want to mess with it.

Cloaked
11-19-2012, 05:40 PM
......... I thought about an edelbrock performer intake but it runs so well I didn't want to mess with it.Unless you add other mods, the intake doesn't produce any significant performance as far as I know. Got one on my 351W (came with it).

If it isn't broken........ :)

$0.02

.

DH9441
11-21-2012, 10:09 AM
Well.... I spayed WD-40 on the Exhaust manifold plugs first. Then slowly tried to remove. The both plugs broke as I suspected they might. The back half of the plugs were both completely rusted. So into another job here. Does Skidim sell those plugs? At least the manifold threads are fine. I will just need to clean out the rust and replace with new plugs.

east tx skier
11-21-2012, 01:01 PM
Just get 3/4" NPT brass plugs for the manifolds and 1/4" NPT for the block. I replaced all of the plugs on my boats very early on.

Miss Rita
11-21-2012, 04:07 PM
x 2 on the brass plugs, every hardware store sells 'em. It would be worth your while to get appropriate sized taps to chase the threads, then use some Never-Seeze. Teflon tape is good too, but I'm not sure if it will work as well to keep rust from forming on your newly-cleaned threads. Or, use Never-Seeze and teflon. (Hard to keep that MCOCD under control)

DH9441
11-21-2012, 11:43 PM
Thank you!!!