Installing Andrews 57 on a Dyna 06
Thread Starter
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Road Captain
Joined: Aug 2018
Posts: 589
Likes: 93
From: Stockholm
Try to fit the manifold before doing any milling. I have installed intake manifolds with more of a "drop" than the OP is dealing with without any "milling". The OP will be kicking himself if he cuts the intake and has leaking seals in the future; just sayin.
BTW, I have caught ChatGpt getting things wrong several times. I suggest that the OP reply to Chat Gpt and tell it that several members of a Harley Davidson technical forum have advised that the intake does not have to be milled and see how Chat Gpt replies.
BTW, I have caught ChatGpt getting things wrong several times. I suggest that the OP reply to Chat Gpt and tell it that several members of a Harley Davidson technical forum have advised that the intake does not have to be milled and see how Chat Gpt replies.Chat TGP agrees completely and has the deepest respect for the HD-forum community.
Last edited by OakMountainRider; Feb 11, 2026 at 02:27 PM.
Seasoned HDF Member
Joined: Nov 2016
Posts: 5,801
Likes: 809
From: South Carolina
I have a question maybe someone can explain it to me? I can see the difference in the two plates in the pictures, but the cam chain? On the factory plate is it bigger? Looks to have more play in it? Or is it an illusion
Reason asking is I'm thinking about a cam ,however I'm looking to use the factory plate and just replace bearings, and oil pump along with the tensioners..
Thanks in advance.
Reason asking is I'm thinking about a cam ,however I'm looking to use the factory plate and just replace bearings, and oil pump along with the tensioners..
Thanks in advance.
Thread Starter
|
Road Captain
Joined: Aug 2018
Posts: 589
Likes: 93
From: Stockholm
I have a question maybe someone can explain it to me? I can see the difference in the two plates in the pictures, but the cam chain? On the factory plate is it bigger? Looks to have more play in it? Or is it an illusion
Reason asking is I'm thinking about a cam ,however I'm looking to use the factory plate and just replace bearings, and oil pump along with the tensioners..
Thanks in advance.
Reason asking is I'm thinking about a cam ,however I'm looking to use the factory plate and just replace bearings, and oil pump along with the tensioners..
Thanks in advance.
Last edited by OakMountainRider; Feb 26, 2026 at 01:10 AM.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,117
Likes: 7,643
From: Poolville
How can you do a proper leak down test without breaking in the rings..???
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Road Captain
Joined: Aug 2018
Posts: 589
Likes: 93
From: Stockholm
This winter I cleaned out carbon, changed the cam, checked valve to valve clearance, valve to piston clearance and replaced the head gaskets. Apart from what is mentioned above, I also replaced the valve springs, the valve seals and the exhaust valves.
You are right there otherwise. At breaking in I had a terrible blow-by, I recall. I didnt do any leak down then, but upon opening the oil hole at idle, it was blowing like a steam engine. Also it was leaking oil from joints in the engine.
Last edited by OakMountainRider; Feb 26, 2026 at 08:17 AM.
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Road Captain
Joined: Aug 2018
Posts: 589
Likes: 93
From: Stockholm
Compression releases are leaking
Doing the leak down test again, this time more correct by releasing air several times to set the meter to zero, I measured 10 % instead of 8 %
Searching for the leak I found that both the compression releases were leaking.
These Husqvarna motor saw compression releases have been in my cylinder heads for three years. I will replace them with new ones and do the test again, to see what it shows.
https://youtu.be/0GeaFguj9D0?si=vQBZkbmkLl1dnMi4
Searching for the leak I found that both the compression releases were leaking.
These Husqvarna motor saw compression releases have been in my cylinder heads for three years. I will replace them with new ones and do the test again, to see what it shows.
https://youtu.be/0GeaFguj9D0?si=vQBZkbmkLl1dnMi4
Last edited by OakMountainRider; Feb 28, 2026 at 01:14 AM.
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Thread Starter
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Road Captain
Joined: Aug 2018
Posts: 589
Likes: 93
From: Stockholm
Tried new Husqvarna valves. They leak as well. Plugged the valves with glue. Then leak down is only 5-6 % on both.
Anyone know any valve which does not leak?
Anyone know any valve which does not leak?
Last edited by OakMountainRider; Feb 28, 2026 at 03:08 PM.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,117
Likes: 7,643
From: Poolville
Can't go wrong with these Kibble white, but if you have the same identical Leak with brand new, I would say there's something going on with the head or the theads..
Kibblewhite Compression Release Valves - Parts Giant https://share.google/Kw2bNWXROcaUk7f8K
Kibblewhite Compression Release Valves - Parts Giant https://share.google/Kw2bNWXROcaUk7f8K