Flywheel Fiasco

renjaminfrankln

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Yep if you cut the fuel and the sound persists it’s not the fuel related. I think you’re at the point where it’s the last chance with the shop, they may make it right. Maybe check the trans fluid to make sure it’s not way overfilled with gear oil. I’ve seen all kinds of crazy stuff put in the zfs, but they take atf. However it’s more than likely something has been changed recently, and that would be the clutch...

I drained the ZF5 when I got the truck about 2 months ago, normal looking ATF came out, refilled with Mercron V. Did not overfill, level was right at the fill plug.
 

Thewespaul

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That’s good to hear about the atf. If the flywheel is wider than 11.5” the inspection cover will not fit without hitting the flywheel. The noise will be most noticeable during cranking if it’s hitting the inspection cover, but they may have bashed it to kinda fit but still makes noise when driving
 

Thewespaul

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Mike found your issue. Have them pull the inspection plate and run it to check for noise
 

renjaminfrankln

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Mike found your issue. Have them pull the inspection plate and run it to check for noise

They are going to pull it off and let me know.

Also having them save my old DMF and parts. If the inspection plate does not fix it, we will pull the transmission and see whats up. So i'll have a range of options. Right now I have a LUK 07225 kit in the truck, an unopened perfection 12" clutch SMF conversion kit in the garage, and i'll have the old DMF too.
 

renjaminfrankln

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Sorry to hear of your clutch/flywheel problems. On the bright side, that is one beautiful Swift.

Thank you. Sadly it is a hangar queen right now. The one part that is almost impossible to find is a working power pack (unit containing hydraulic pump/reservoir and valves that move the gear and flaps up/down). After going through two used pumps we sent a pump off to an aircraft hydraulic shop that specializes in Cessna power pack overhauls. Owner said it would take him about a month to get some parts made and develop an overhaul kit. That was in February. We also have a number of Swift owners lined up who would love to buy a freshly overhauled pump.

Repairing the original pump is pretty much the only way to fix it without having to retrofit something which requires a lot of painful intervention from the FAA. And the original pumps are 70+ years old so they should go another 70+ with a full overhaul.

Actually if anyone knows a good hydraulic specialist/machine shop that would be interested in working on one of these I have a spare powerpack sitting in my office.

Fortunately the FAA does not have anything to say about our IDI's.
 
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renjaminfrankln

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Thanks to BrianX for sending pictures of his kit...

I have not heard back yet about the inspection cover, if that solved the issue or not.

This part about reusing the factory backing plate jumps out at me as a potential problem area.

I called the number on the bulletin there and talked to a tech support guy at LUK. He said "we sell a ton of these conversion kits and rarely have complaints"

He said not including the factory backing plate would cause problems. As I mentioned earlier the guy who installed this probably did not read this slip of paper as it was likely lost the first time they aborted the job. Without instructions, may have chucked the backing plate out with the DMF. I hope it is just the inspection cover. But I am not optimistic.


20181120_133822-jpg.119381
 
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renjaminfrankln

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I took the truck home and pulled the inspection plate off. Noise still there. No marks on inspection plate.

They lost or threw out my DMF.
 

Thewespaul

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Dang. Was really hoping it was a simple fix. I can set you up with a backing plate if yours is missing now, I have plenty here.
 

renjaminfrankln

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Dang. Was really hoping it was a simple fix. I can set you up with a backing plate if yours is missing now, I have plenty here.

Will probably take you up on that, send me a PM. Worth a few bucks to have one out here.

I don’t know for sure that they did not re use the factory backing plate as per the instructions, just a suspicion. But, per the LUK rep, that could cause my problem
 

laserjock

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That sucks. I was hoping for the simple answer too. I’m at a loss. Somethings not put together right I guess.
 

renjaminfrankln

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That sucks. I was hoping for the simple answer too. I’m at a loss. Somethings not put together right I guess.

Yeah, just gonna be patient and see if they can fix it. I think the shop and myself are both frustrated at this point, but it does not make sense to get mad about anything.
 
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BrianX128

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Yeah, this just sucks all around. It sounds like you had more defective work done. The backing plate goes on the outside of the flywheel from what I'm reading, so I would assume if you didn't use it that the bolts wouldn't really be tight or they are but the flywheel isn't really tight to the crank and could be wobbling around some when not engauged and under a load from the engine.

Would I be right in assuming if this is true, he should probably not be driving the truck or even running it for fear of shearing off a bolt in the crank? Just trying to save further headache for him.

I have no idea what I am talking about, mind you. Just learning as I go before I likely also have this screwed up myself by someone I've never met named Les here in a month.
 
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