Valve train question
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catfishunter99
Topic author - Posts: 60
- Joined: Wed Jun 19, 2019 8:00 pm
- First Name: LORIEN
- Last Name: HEGNER
- * REQUIRED* Type and Year of Model Ts owned: 1926 Touring
- Location: New London, Wisconsin
- Board Member Since: 2019
Valve train question
Doing some valve work on my 26 and found these spacers between the top of the spring and the block. I do not believe these are factory and curious on their intended purpose. Thanks!
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TXGOAT2
- Posts: 7391
- Joined: Sun Feb 14, 2021 10:08 pm
- First Name: Pat
- Last Name: McNallen
- * REQUIRED* Type and Year of Model Ts owned: 1926-7 roadster
- Location: Graham, Texas
- Board Member Since: 2021
Re: Valve train question
If they are not original equipment, they are probably valve spring shims intended to the extend the life of used springs by restoring original spring tension. Another possibility is that the engine has a performance cam installed and the shims were installed to allow the valves to better follow the more radical cam profile, especially at higher RPM.
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speedytinc
- Posts: 4725
- Joined: Fri Feb 12, 2021 12:24 pm
- First Name: john
- Last Name: karvaly
- * REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
- Location: orange, ca
- Board Member Since: 2020
Re: Valve train question
Increases valve spring pressure. Commonly done on modern engines to maintain valve spring pressure after a valve job. Good original springs or new ones should be used. No additional spacer is needed for a T motor, even with a lower valve seat.