Author Topic: cvx-18 exhaust (Read 65265 times)

Shrom CVX-18 · « **Reply #40 on:** March 04, 2011, 02:56:09 PM »

Wex. for right now yes I am going to try the carb as is. if I need to rebuild it I will. but I figure not going to hurt to try is as is. I'll let you know if I have it ready to start this weekend.

Shrom CVX-18 · « **Reply #41 on:** March 07, 2011, 05:47:42 PM »

Fired her up yesterday in my garage just take make sure I had all wiring correct. Sorry guys no video yet. I didn't let it run long because I had no water too it. So once I have a good day on the weekend I will hook up the water and run it longer to make sure it wont over heat and dial in the carb/timing a little.

wexrocks · « **Reply #42 on:** March 07, 2011, 08:22:02 PM »

nice work Shrom... let me know when you are gonna run it with water, I'd like to check it out. I can bring the video camera along too if that helps.

Hot Carl · « **Reply #43 on:** March 08, 2011, 08:28:51 AM »

Congrats on getting it all put together and running - that's got to feel good!

Shrom CVX-18 · « **Reply #44 on:** March 09, 2011, 11:23:01 AM »

Oh yeah it felt great to turn the key any have it fire up. Of course I had to crank it to get fuel in to the carb first besides that it fired up with no problem.

Steve that would be great if you could bring the video camera, i will be sure to let you know when get it running with water. This weekend doesn't look like good weather so i will probably get other little
Things done. Plus can't forget the stuff i should be doing around the house:-/

Grinder · « **Reply #45 on:** March 15, 2011, 08:16:01 PM »

Craig,

How did you route your manifold plumbing? I found a link that they used bottom 4 ports and plugged the top 2. Is that how you did yours, or did you change the thermostat housing? This is what I found when doing some research.

http://my.boatus.com/forum/forum_posts.asp?TID=62922

Hot Carl · « **Reply #46 on:** March 16, 2011, 10:18:13 AM »

Grinder - thanks for that link...I'll be dealing with the same issue in a few weeks and don't plan on buying the newer t-stat.

By the way, I was looking at the exact pair of manifolds you bought for weeks! I hope they turned out as nice as they looked

I think Craig blocked off the bottom fitting on his manifolds and uncorked the two ends, allowing him to use the original number of hoses/original t-stat. Craig, how's my aim?

Shrom CVX-18 · « **Reply #47 on:** March 16, 2011, 11:15:03 AM »

That is currect What I did was used the old t-stat houseing and I plugged the middle fitting on the risers and used the two outer ones on the manifolds. I ran the hoses just like they ran with the old. Riser to riser. front hose to front. rear to rear. If you look back through I have a picture of the manifold. I will post more pictures later today of all the hoses hooked up. I did not get the chance to run it yet with water. I will be doing that this sat. I do believe that I shouldnt have any problems with overheating.

Rosscoe · « **Reply #48 on:** March 16, 2011, 06:13:45 PM »

So your risers are connected too? How about some pics? My old log style were connected and had both lines going into the front. Now when I replace the manifolds and risers. I'll need to replumb too. Did you use just regular old plumping fittings or "special" marine type? I'd like to see the set up.
Thanks

Opps just saw the pics earlier in the thread. Wow you have all kinds of barbs coming off the thermostat housing. I only have 4

Shrom CVX-18 · « **Reply #49 on:** March 16, 2011, 06:43:46 PM »

here are pictures. yeah I do have a bunch of plumbing. I was able to re-use the old hose and Wexrocks gave me two of his old hose from his 454 engine that he had laying around.

Shrom CVX-18 · « **Reply #50 on:** March 16, 2011, 06:51:48 PM »

one more pic. I will be putting a spark arrestor cover on this weekend. I am currently giving it a fresh coat of paint.

CVX Fever · « **Reply #51 on:** March 16, 2011, 07:35:33 PM »

Nice job Shrom! Looks like your ready go this spring.

Grinder · « **Reply #52 on:** March 16, 2011, 07:52:04 PM »

Did you have to persuade the dip stick a little?

Rosscoe · « **Reply #53 on:** March 16, 2011, 08:16:33 PM »

Look like 4" risers?
I imagine you use gasket cement on all the gaskets? Dont want those to leak.
Looks good!
I'm looking at those hole in the transom and thinking...knowing me, although I think I over think stuff sometimes, I probably would have laid out the location from the inside and not taken the flanges on the tips into account

That would have been a bad, bad mistake!

Shrom CVX-18 · « **Reply #54 on:** March 16, 2011, 08:37:10 PM »

Quote from: Grinder on March 16, 2011, 07:52:04 PM

Did you have to persuade the dip stick a little?

I did move it a bit, but it was not needed.

And yes they are 4 inch risers down to 4 inch tips

wexrocks · « **Reply #55 on:** March 19, 2011, 05:25:20 PM »

Okay guys, I got to see Shrom's boat run today with the new thru-hull... sounds awesome!!! and a real clean, top quality install.

I took a video so that everyone could check it out. I uploaded it to my youtube channel, this link should take you there...

http://www.youtube.com/user/wexrocks

Grinder · « **Reply #56 on:** March 19, 2011, 06:06:26 PM »

Sounds GREAT!!! Do you have a part number for your alternator bracket?

Shrom CVX-18 · « **Reply #57 on:** March 19, 2011, 06:49:27 PM »

Quote from: Grinder on March 19, 2011, 06:06:26 PM

Sounds GREAT!!! Do you have a part number for your alternator bracket?

http://cgi.ebay.com/ebaymotors/305-350-CHEVY-V8-ALTERNATOR-BRACKET-MERCRUISER-EXHAUST-/160362174021?pt=Boat_Parts_Accessories_Gear&hash=item2556549645

I have kept my eye out all winter for a used bracket, Nothing

So I ended up biting the bullet and buying this one. It works perfect. A bit pricey.

Grinder · « **Reply #58 on:** March 19, 2011, 06:54:18 PM »

Is it the same as this one?

Shrom CVX-18 · « **Reply #59 on:** March 19, 2011, 06:57:29 PM »

That looks to be the same thing to me. If not its darn close...Not sure if mine has a part number on it. I will check tomorrow and get back to you.