Does anyone know if the flange near the front of a T cam is part of the cam machining or is it shrunk on?
Still trying to find a suitable cam for a Rajo OHV head engine.
John
Rajo T Speedster
Western Australia
Camshaft flange detail
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Rajo T Speedster
Topic author - Posts: 14
- Joined: Wed May 11, 2022 11:12 pm
- First Name: John
- Last Name: Rowe
- * REQUIRED* Type and Year of Model Ts owned: 1918 RHD Speedster
- Location: Perth, Western Australia
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OlGeezer
- Posts: 22
- Joined: Thu Nov 09, 2023 1:50 pm
- First Name: Andrew
- Last Name: Turner
- * REQUIRED* Type and Year of Model Ts owned: 1922 Runabout
- Location: Williamsburg, Virginia
Re: Camshaft flange detail
I'm no expert, but from my experience, the flange near the front of a T cam is usually machined as part of the camshaft. I haven't heard of it being shrunk on separately.
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Jerry VanOoteghem
- Posts: 4082
- Joined: Sun Jan 06, 2019 4:06 pm
- First Name: Jerry
- Last Name: Van
- Location: S.E. Michigan
Re: Camshaft flange detail
I am certain that the flange is integral to the shaft and not an add-on piece.
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Craig Leach
- Posts: 1906
- Joined: Tue Jan 08, 2019 12:22 am
- First Name: craig
- Last Name: leach
- * REQUIRED* Type and Year of Model Ts owned: 1919 Firetruck/1922 Speedster
- Location: Laveen Az
Re: Camshaft flange detail
Hi John,
If my memory serves me correctly the Rajo rocker arms are a1:2 ratio this will give you almost a 1/2" lift with a stock cam. If valve timing
is what you are looking to change I think Dan McEachern makes a timing gear set for that reason.
Craig.
If my memory serves me correctly the Rajo rocker arms are a1:2 ratio this will give you almost a 1/2" lift with a stock cam. If valve timing
is what you are looking to change I think Dan McEachern makes a timing gear set for that reason.
Craig.
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RajoRacer
- Posts: 5172
- Joined: Sun Jan 06, 2019 12:18 pm
- 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: Camshaft flange detail
I installed a Chaffin's "modified" reground camshaft in my BB RAJO near 30 years ago now - it performs quite well !
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Dan McEachern
- Posts: 1402
- Joined: Sun Jan 06, 2019 11:08 am
- First Name: DAN
- Last Name: MCEACHERN
- * REQUIRED* Type and Year of Model Ts owned: too many. '14 touring, 2 depot hacks, 2 speedsters
- Location: ALAMEDA,CA,USA
Re: Camshaft flange detail
Many commercial Rajo heads used 1:1 rocker arms, so be aware.
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kmatt2
- Posts: 655
- Joined: Wed Jun 17, 2020 1:41 pm
- First Name: Kevin
- Last Name: Matthiesen
- * REQUIRED* Type and Year of Model Ts owned: 26 T Coupe, 16 T Open Express, 21 TT Flatbed. 15 T Roadster, 13 & 25 T Speedster’s,51 Mercury 4 door sport sedan, 67 Mercury Cougar
- Location: Madera CA 93636
Re: Camshaft flange detail
John, If you are going to run a reground Model T cam you will need to use a late 1924-27 T cam , the cam with the long front lobe. The earlier T cams use a shorter front lobe and a longer front bearing to take up thrust , but require modified front thrust when regrinding because the long front bearing won’t limit thrust on reground cam due to the cut down cam heal .
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Craig Leach
- Posts: 1906
- Joined: Tue Jan 08, 2019 12:22 am
- First Name: craig
- Last Name: leach
- * REQUIRED* Type and Year of Model Ts owned: 1919 Firetruck/1922 Speedster
- Location: Laveen Az
Re: Camshaft flange detail
Hi Dan,
That is what I love about the Forum I get to learn something new every day.
John,
Kevin is correct about the early year regrind cams but if you have a Bosch timing cover distributer there is a thrust
adjusting screw in the cover for that. & the thrust washer kit is not expensive or hard to install most of the time.
Craig.
That is what I love about the Forum I get to learn something new every day.
John,
Kevin is correct about the early year regrind cams but if you have a Bosch timing cover distributer there is a thrust
adjusting screw in the cover for that. & the thrust washer kit is not expensive or hard to install most of the time.
Craig.