Dyna knocking

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Oct 22, 2019 | 07:30 PM

#21

rocket23

Seasoned HDF Member

Joined: Apr 2010

Posts: 33,712

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From: Connecticut.

Quote:

Originally Posted by REW13

Goin to sound crazy... Change the oil filter, I got a bad filter my last change and I was making the same sound.
Hopefully that's i
Good luck there

doing all 3 holes with a wix filter change in 2 weeks m1 for tranny and motor redline primary juice and 4 ounces m1 in the primary.

Quote:

Originally Posted by diverherb

First thing I I would look at would be the octane of the fuel. You may be going past the "pinging" phase and into pre-ignition. The other thing to check is carbon build up That will cause hot spots and pre-ignition. I have also seen carbon build up on piston tops hitting the combustion chamber causing a knock.. A dose of sea foam has helped in those cases.

been running nothing but 93 in her since day 1 which was 500 miles ago 3500 on the clock before that....I have a fresh set of plugs and some gas treatment after theoil change

Quote:

Originally Posted by scott_0

I don't really hear a knock as much as I hear a tap, they are totally different. check your exhaust header primary nuts/studs for looseness, or blown out gasket.........

naw exhaust is fine as wine....thanks for the reply

Oct 22, 2019 | 09:29 PM

#22

REW13

Seasoned HDF Member

Joined: Nov 2016

Posts: 5,801

Likes: 809

From: South Carolina

Just change the filter and add a bit of oil, I thought I had posted a sound bite of my racket. It sounded like yours except a wee bit louder. I'm just hoping that I don't have metal in my next change here soon...