Revolution Exhaust Plumbing?
 

I have a small block that has the 2 hose setup for the exhaust. I just got Revoulution manifolds, and am wondering how to plumb it.

Thanks

Re: Revolution Exhaust Plumbing?
 

I had those manifolds on my 502s when I bought my boat.One hose went to the bottom of the manifold into the 1" pipe nipple.The second hose went into the front of the lower manifold 3/4" pipe nipple.


Nordic95

Re: Revolution Exhaust Plumbing?
 

Thanks,

Do you remember if the ones on the front of the manifolds were elbows, or were they the straight type? I am trying to get them ready to put on the boat, which is at the lake, not my driveway, so I want to get everything in order for an 'easy' installation.

Did you get your Yamaha 220 figured out?

Re: Revolution Exhaust Plumbing?
 

No on the 220.Have not had time,been working on the Founatin.Mine had 90 elbows on the bottom center port and straight on the front.On my new motors I reused those manifold and only ran one hose to the bottom.Tech department said that this way would work fine also,I just wanted to clean things up a bit on the motors,plus new thermostat housing only had one hose per side.

Re: Revolution Exhaust Plumbing?
 

If you only have one cooling hose per side does that mean there is no cooling water going through the exhaust when the t'stat is closed ? The reason I ask is that I am currently installing Stainless Marine exhaust on the boat now. Their install instructions leave alot to be desired !
Thanks, Dave

Re: Revolution Exhaust Plumbing?
 

David
There should be a small hole in your thermostat

Re: Revolution Exhaust Plumbing?
 

If you look at my T stat housing the t stat is in the manifold.So the water runs thru exhaust at all times.

Re: Revolution Exhaust Plumbing?
 

nordic95, I see in your attached picture what you are talking about. Although I have a small block the basic plumbing looks like yours. I have the impeller in the drive ( alpha ) and the stock circulating pump. Where did you get the t'stat housing ? Do you know why Merc uses two hoses per side ? Are there any draw backs to the one hose per side set up.
Thanks, Dave

Re: Revolution Exhaust Plumbing?
 

did you get the instructions with the manifolds???......if not call Revolution.....ask to speak to Terry......he will email you them in a PDF

Re: Revolution Exhaust Plumbing?
 

actually......I have 2 sets of Rev small block chevy manifolds to put on when I get the time.....mine didnt come with any instructions so Terry Pdf'd me the manual for a big block ......he said its the same exact same procedure for the smallblock.......if you PM me your email address I could email you the PDF and you can print it out....doug