Author Topic: M8 front cylinder head gasket  (Read 728 times)

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Offline Slider1950

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M8 front cylinder head gasket
« on: August 01, 2019, 09:38:47 PM »
Today I was checking my 2018 Softail M8 for a ticking noise between 2500 to 3200 RPM. I was looking for exhaust leaks around the header flange and I found this. On the front cylinder right next to the front header flange I noticed the head gasket protruding out from between the header and the cylinder. I can't really tell if there is any leakage there but there is a yellow colored dust on the backside of the header and the front head is consistently 9 to 10 degrees hotter than the rear head when idling. Please take a look at the pics I have attached to see if you think this is an issue. These are the best pics I can get of the head gasket. 
« Last Edit: August 01, 2019, 09:43:00 PM by Slider1950 »

Offline Thermodyne

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Re: M8 front cylinder head gasket
« Reply #1 on: September 13, 2019, 09:47:17 AM »
The M8 head gaskets protrude a little past the machined surfaces of the head/jug. 

If you think its leaking, start it up and listen to that area with a length of heater hose.  If its leaking, you'll hear it. 


Offline ziggy24

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Re: M8 front cylinder head gasket
« Reply #2 on: September 14, 2019, 04:17:19 AM »
is it me or is the stud for the headpipe flange not present?

Offline PIRSCH FIRE WAGON

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Re: M8 front cylinder head gasket
« Reply #3 on: September 14, 2019, 05:46:13 AM »
is it me or is the stud for the headpipe flange not present?

 :wtf: I noticed that too. Maybe he found it!
Tom

Offline Thermodyne

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Re: M8 front cylinder head gasket
« Reply #4 on: September 14, 2019, 08:51:56 AM »
The picture I posted is of a scooter on the lift.  Pipe is removed but still close to the motor.