DD Bobcat Install questions

Reply Subscribe

Thread Tools

Search this Thread

Mar 28, 2019 | 10:09 AM

Hdbkstl

Thread Starter

Road Master

Joined: Dec 2018

Posts: 913

Likes: 322

From: St. Louis

DD Bobcat Install questions

So i got my bobcat in and as expected the instructions suck. I have read older threads that people said use 2 screaming chicken exhaust gaskets per cylinder, DD said use their supplied gaskets. Anyone know the best to go with. Their gaskets look almost like a thin metal ring, vs the flat mesh look on the se ones. Also, it doesn't say anything about removing the retaining rings from the old system either? This is for an M8 114

Mar 28, 2019 | 11:26 AM

Mabbott

Tourer

Joined: Apr 2016

Posts: 278

Likes: 58

From: Connecticut

Just installed DD fatcat on a buddies bike and the DD supplied gaskets leaked no matter what we did. Got stock gaskets, one per cylinder and they didn't leak at all. The stock ones are tapered and seem to allow a better seal. The ones DD send are just a big bulky ring and just didn't seem to seal very well.

Edit: didn't see this was for a m8. The bike I just did was not an m8 so I'm not sure. Sorry

Last edited by Mabbott; Mar 28, 2019 at 11:27 AM.

Mar 28, 2019 | 11:57 AM

Hdbkstl

Thread Starter

Road Master

Joined: Dec 2018

Posts: 913

Likes: 322

From: St. Louis

Quote:

Originally Posted by Mabbott

Yea, the ones that they gave me are super thin and look like there is a metal ring around maybe a fiber core. Wish i took a picture of them. i have the flat screaming eagle one at the house. I think i would be safe going with those. I don't want to have to take this bitch back apart because of a leak. I read that people were using two flat gaskets per side. Most of the installs have been on TC, but i figured i would get a better response here. i want to get it back together tonight.

Mar 28, 2019 | 03:43 PM

cdonis

Outstanding HDF Member

Joined: Jul 2013

Posts: 3,245

Likes: 297

From: Escalon ca

Call and ask for Leonard.

Mar 28, 2019 | 10:10 PM

Hdbkstl

Thread Starter

Road Master

Joined: Dec 2018

Posts: 913

Likes: 322

From: St. Louis

Quote:

Originally Posted by cdonis

Call and ask for Leonard.

I'll call him in the morning. I got it put on. Used the se gaskets. It when tightend all the way down the weld of the head pipe is right against the head. I dont know if thats how its suppose to be or not. It looks like there is a tiny leak in the back head. I'm going to readjust the nuts tomorrow. I'll see what dd says. I will say for 1k....they could give better instructions.