Fatcat installed....
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
Exhaust Flange nuts
The fatcat was installed tonight. These are words that I never thought that I would be typing...hahaha! The install went "ok". I lost one of the nuts that mount the exhaust to the head. I heard it "tink" and then I never saw it again. Thankfully my buddy keeps his bike in the same storage building, so I took one off of his....LOL...what are friends for huh? I believe everything tightened up ok. It seemed the bolts that mount to the head were a little tough to get tightened. It seems like they could be tightened more, but when I fired it up I didn't hear any leakage.
Well I got everything together and tightened up. I fired it up and HOLY SH*T. This thing is loud!!!!!!!!!!!!!! It sounds like a freaking big block. It turns out that my old headpipes had the catalyst in them. I didn't get a chance to ride it yet, but hopefully I will tomorrow. I'll try to get some pics up tomorrow.
Well I got everything together and tightened up. I fired it up and HOLY SH*T. This thing is loud!!!!!!!!!!!!!! It sounds like a freaking big block. It turns out that my old headpipes had the catalyst in them. I didn't get a chance to ride it yet, but hopefully I will tomorrow. I'll try to get some pics up tomorrow.
I think you might want to torque those nuts to same and proper torque and then retorque them in 200 miles or so....
Couple reasons:
1) You don't want to crush the crap out of the exhaust gaskets
2) You don't want those nuts working there way off at a bad time
Since you have to take the time to take off and install the heat shields which I find to be a minor pain in the ***...you want to be worry free regarding the nuts cause they do, can and will fall off if not torqued correctly.
Thread Starter
|
Road Warrior
Joined: Feb 2006
Posts: 1,700
Likes: 0
From: down south
I have the standard baffle in them. I'll probably torque those bolts down again in a few hundred miles. It seems to me that the D&D have their flanges mounted a little further out than other pipes that I've seen. I'll try to take a picture to show you what I'm talking about.
Thread Starter
|
Road Warrior
Joined: Feb 2006
Posts: 1,700
Likes: 0
From: down south
I did make one other mistake...haha. I'm no mechanic by any means. I did get a LITTLE anti seize compound on the O2 sensor. I attached a photo showing where I got it on the sensor at. I got as much of it off as I could. It got on the side of the sensor a little. Think it'll mess anything up?
Intermediate
Joined: Sep 2009
Posts: 48
Likes: 0
D&D states you need the concentric only for stock motor......no upgrades......any upgrades cams or such change to big bore quiet or loud or bourzila
Tourer
Joined: Mar 2007
Posts: 385
Likes: 3
From: Mcdonough, Georgia
I was thinking fatcat for my bike, but now not so sure. I'm putting in 255 cams only and I'm thinking this pipe might be to loud.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
That may be what D&D states, but it isn't the way it is. I'm making 116/116 out of the 103 in my Night Train with a quiet baffle. It may be hurting the top end a bit, but not by much.
Advanced
Joined: Oct 2009
Posts: 83
Likes: 0
From: Little Rock Arkansas
Man, that's a great looking Night Train.