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  #11  
Old 08-28-2019, 09:03 PM
oldsmobiledriver oldsmobiledriver is offline
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Was it still running ok? The tick was the exhaust leaking past that blown gasket. The black is carbon from a full burn of a cylinder hit so I bet that was the noise. If it was running ok, then clean the surfaces with a wire brush and put a very light coat on both sides of the gasket of high temp RV silicon. All will be good!


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  #12  
Old 08-28-2019, 09:08 PM
KWSC KWSC is offline
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Yup still running fine
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  #13  
Old 09-01-2019, 06:49 PM
KWSC KWSC is offline
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So still have the tapping noise. Tried some Rislone oil for lifters which didn't help.

Same as before with it getting progressively worse as it warms up and it starting at 1800 rpm ( only on the water though - on the trailer itís fine)

Thoughts?
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  #14  
Old 09-02-2019, 09:55 PM
KWSC KWSC is offline
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Did a compression test today. Not good results... all cylinders 180-190 except #4 & 6 which were 65-70psi. These cylinders are where the water leak from the failed riser gasket was evident.

Took off the valve cover on that side and watched the rocker arms etc and couldn’t notice a difference between the two bad cylinders and the two good ones on that side.

Next steps?
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  #15  
Old 09-03-2019, 07:16 PM
NatesGr8 NatesGr8 is offline
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Pull the head? Look for evidence of a blown head gasket. I’m not sure there’s a way to adjust those valves.
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  #16  
Old 09-04-2019, 04:09 AM
chrislandy chrislandy is offline
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head gasket or corroded valve seats. Whip the head off and check it out. You may be lucky and just have to re-seat the valves
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  #17  
Old 09-04-2019, 09:54 AM
KWSC KWSC is offline
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Thanks! Will pull the head and see what is going on with the gasket and valves.
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  #18  
Old 09-14-2019, 12:49 PM
KWSC KWSC is offline
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Current status. Head is coming off today.
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  #19  
Old 09-14-2019, 03:41 PM
KWSC KWSC is offline
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Definitely a blown head gasket between 4&6. Cooling ports are super plugged too. Not sure if I should pull the other side just to clean the ports or try an acid wash.
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Last edited by KWSC; 09-14-2019 at 03:42 PM. Reason: Added pics
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  #20  
Old 09-16-2019, 05:16 AM
chrislandy chrislandy is offline
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Yup, I would, just to clean the waterways in the block out.
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