Power valve on new carb...need your input
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=35793
Printed Date: October-07-2024 at 10:50pm
Topic: Power valve on new carb...need your input
Posted By: Cheaterpete
Subject: Power valve on new carb...need your input
Date Posted: April-16-2015 at 9:32am
|
Dear CC fan I have been working on this boat for quite a while now, a 2001 fron 1985, commander engine. carb was out of order and decided to order one from national carburetor. looking very good but not working good... it seems that the secondaries never open, you can t feel any power when you hit the gas... After reading lot of posts on CCfan, I find out that the correct PW is 6.5, I decided to open the carb but the numbers are weird... i have a 3 and a 6... in an other carb from a friend it says 85. and it s not working either Yesterday I put a 5.5 PW that I had, and the boat is working way better! What s your feedback for those rebuild carbs? thanks for sharing Peter ------------- Actual boat SANTE 210 from 2014 |
Replies:
Posted By: Cheaterpete
Date Posted: April-20-2015 at 7:48am
|
Thanks for helping me ------------- Actual boat SANTE 210 from 2014 |
Posted By: mamigacz
Date Posted: April-20-2015 at 3:23pm
|
You find the power valve number like the view below:  The 6.5 power valve appears to be the most popular for stock and slightly modified 351W ski boat engines. The difference between a 5.5 and 6.5 is very small. I would leave the 5.5 in. How are determining that your secondaries are not opening? You will never be able to witness them opening in neutral. The engine has to be under load, with the throttle blades wide open (or close to wide open). Your post is a little confusing, If I didn't answer your question, please clarify with more specific questions. |
Posted By: Cheaterpete
Date Posted: April-21-2015 at 4:45am
|
OK, thanks for your reply On the new carb, the numbers on the PW is 3 and 6, weird, I decided to install a 5.5 and the boat is now working properly, not as good as before, but ok. with the new carb installed, the boat was very slow, no punch when WOT.... Now it s a completely different animal, and this is just with the 5.5 PW installed. I will try with a 6.5 asap ------------- Actual boat SANTE 210 from 2014 |