Knock Knock
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Topic author - Posts: 263
- Joined: Sun Jan 06, 2019 2:50 pm
- First Name: DEAN
- Last Name: YODER
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Knock Knock
for three years I have tried to trace down a knock that has bugged me since I built it.
Think I found it.
Think I found it.
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Re: Knock Knock
Dean, It's great that you finally found it, but are you going to share what you found with the rest of us?
Thanks,
Keith
Thanks,
Keith
'14 Touring, '26 Roadster Pickup, '27 Fordor, '27 Touring
Motto: It's hard to build a garage that's tooooo big!
Motto: It's hard to build a garage that's tooooo big!
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Re: Knock Knock
I am guessing it was the use of plywood behind the electrical panel (?).
More people are doing it today than ever before !
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Re: Knock Knock
Having no information, I’m guessing cam shaft end play!! It can really drive you crazy!!
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Topic author - Posts: 263
- Joined: Sun Jan 06, 2019 2:50 pm
- First Name: DEAN
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Re: Knock Knock
After I drive it and am positive what it was I will share .no one has hit it yet
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Re: Knock Knock
Do you have a "friend" like this????
https://www.youtube.com/watch?v=LONT1oboJrs
https://www.youtube.com/watch?v=LONT1oboJrs
Government - because people struggle to ruin their lives by themselves
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Re: Knock Knock
Now I'm sure everything would have been sweet when Dean rebuilt the engine so I'm putting my money on a sneaky little knock on the scat hitting the pan horse shoe or one of the bolts holding it.
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Topic author - Posts: 263
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Re: Knock Knock
Not the scat crank hitting .checked that couple years ago.
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Re: Knock Knock
Rod bolt barely tapping the cam? Loose flywheel bolt?
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Topic author - Posts: 263
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Re: Knock Knock
Not the rods. I have checked them three times
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Topic author - Posts: 263
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Re: Knock Knock
Flywheel bolts so tight I thought I was going to have a cheater bar to get them off.
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Re: Knock Knock
Had one that drove me nuts, .060 over Egge's with the sharp edge on side was hitting head gasket, Another one was piston hitting top of cylinder on high rpm's with High Compression head.
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Re: Knock Knock
Ohhhh - the suspense....
Anxiously awaiting the answer...
Anxiously awaiting the answer...
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Re: Knock Knock
Bent rod or piston slap?
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Re: Knock Knock
Crankshaft pulley/pin assembly?
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Topic author - Posts: 263
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Re: Knock Knock
Removal of one shim cured my knock.
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Re: Knock Knock
Sounds like you were lucky that your engine didn't eat the magneto
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Re: Knock Knock
Interesting.
So, for further education, why was the shim installed? For some reason it was put there....the result was not to your liking - (nor to the engine's)...is there a lesson to be learned here that you can share with us?
Incidentally - many thanks for the expertise you have shared in the past!
Dave
So, for further education, why was the shim installed? For some reason it was put there....the result was not to your liking - (nor to the engine's)...is there a lesson to be learned here that you can share with us?
Incidentally - many thanks for the expertise you have shared in the past!
Dave
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Topic author - Posts: 263
- Joined: Sun Jan 06, 2019 2:50 pm
- First Name: DEAN
- Last Name: YODER
- * REQUIRED* Type and Year of Model Ts owned: 19tour,24tour,25rdpu,27rd.26coupe,TT's,& tractor conversions
- Location: Iowa
- MTFCA Number: 295
- MTFCA Life Member: YES
- MTFCI Number: 127
- Board Member Since: 1999
Re: Knock Knock
Dave the biggest lesson is 25- 40 clearance loose
25.
The shim I used is a factory shim.
I made it too tight.
Scat cranks have a large radius fillet if I am setting another scat. On the tight end I will check my radius fit with plastigague.
25.
The shim I used is a factory shim.
I made it too tight.
Scat cranks have a large radius fillet if I am setting another scat. On the tight end I will check my radius fit with plastigague.
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- Posts: 314
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Re: Knock Knock
Thank you.
Another lesson I hope to file away between my ears. (But I will write it down to count for the inevitable "forgetfulness"
Another lesson I hope to file away between my ears. (But I will write it down to count for the inevitable "forgetfulness"