Missing 1927 Timing Cover Bolt
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MKossor
Topic author - Posts: 521
- Joined: Sun Jan 06, 2019 7:30 pm
- First Name: Mike
- Last Name: Kossor
- * REQUIRED* Type and Year of Model Ts owned: 1927 Touring
- Location: Kenilworth, NJ 07033
Missing 1927 Timing Cover Bolt
I just noticed there is a missing bolt on the top of my rebuilt 1927 timing cover. It is a large diameter, fine thread bolt. It was installed before rebuild but now can't find it and need to order a replacement bolt but do not know that to order. Would appreciate guidance from those in the know.
Also curious to know the purpose of the bolt; why a larger diameter bolt with larger boss on the timing cover? Its a 1928 engine based on serial number so uses the eccentric fan belt pulley mounted to the upper water jacket. Perhaps its not the original 26-27 timing cover?
Also curious to know the purpose of the bolt; why a larger diameter bolt with larger boss on the timing cover? Its a 1928 engine based on serial number so uses the eccentric fan belt pulley mounted to the upper water jacket. Perhaps its not the original 26-27 timing cover?
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RajoRacer
- Posts: 5172
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- First Name: Steve
- Last Name: Tomaso
- * REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
- Location: Longbranch, WA
- Board Member Since: 2001
Re: Missing 1927 Timing Cover Bolt
The large bolt hole was used to hold the fan arm on pre '26 engines - I believe it's a 1/2 - 20 thread - when the fan adjustment was moved to the water outlet, the bolt length was modified.
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speedytinc
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Re: Missing 1927 Timing Cover Bolt
1/2" nf bolt. You can measure for length. Lock washer? Dont think so.
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John kuehn
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Re: Missing 1927 Timing Cover Bolt
I can’t remember if an original bolt has a cotter pin hole or not. It’s raining hard here so I can’t go out now look at one of my cars to see! 
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speedytinc
- Posts: 4725
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Re: Missing 1927 Timing Cover Bolt
No cotter pin hole. bolt just reaches past the end of the hole. 3/4" long?
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Ken Lefeber
- Posts: 70
- Joined: Mon Jan 07, 2019 10:40 am
- First Name: Ken
- Last Name: Lefeber
- * REQUIRED* Type and Year of Model Ts owned: 1927 Coupe
- Location: Plymouth, WI
- Board Member Since: 2015
Re: Missing 1927 Timing Cover Bolt
Mike,
This is what mine looks like. 11/16 socket fits on the head.
This is what mine looks like. 11/16 socket fits on the head.
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MKossor
Topic author - Posts: 521
- Joined: Sun Jan 06, 2019 7:30 pm
- First Name: Mike
- Last Name: Kossor
- * REQUIRED* Type and Year of Model Ts owned: 1927 Touring
- Location: Kenilworth, NJ 07033
Re: Missing 1927 Timing Cover Bolt
Thank you Steve, John and Ken for the description and details. Turns out it is not a bolt Lang's or Chaffin's normally stocks. Rats!
Hopefully, I overlooked it in the old parts from the rebuilder or they still have it. Otherwise, will post a WTB in the classifieds. Thanks again for providing the information and photos.
Hopefully, I overlooked it in the old parts from the rebuilder or they still have it. Otherwise, will post a WTB in the classifieds. Thanks again for providing the information and photos.
I-Timer + ECCT Adjusted Coils = Best Model T Engine Performance Possible!
www.modeltitimer.com www.modeltecct.com
www.modeltitimer.com www.modeltecct.com
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speedytinc
- Posts: 4725
- Joined: Fri Feb 12, 2021 12:24 pm
- First Name: john
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- * 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: Missing 1927 Timing Cover Bolt
A good hardware store has em. Like McMaster carr , Ace. Head will be 3/4". You can remove the grade marks & paint.