Model R Odyssey
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Topic author - Posts: 56
- Joined: Tue Mar 05, 2019 3:38 pm
- First Name: Bob
- Last Name: Kiefaber
- * REQUIRED* Type and Year of Model Ts owned: 1906 model F, 1907 model R, 1915 centerdoor sedan, 1921 centerdoor sedan
- Location: Indiana
Model R Odyssey
- Had the original radiator re-cored with a new Brassworks
core.
- rebuilt coils by (RIP) Rv Anderson.
- Have original carb and new rebuilt Holley nh
- commutator cleaned and new wiring.
- pulled the jugs and put new gaskets in.
- lapped the valves.
- checked compression. Which varies from 15lbs to 20lbs.
Etc….
I have tried cranking it by hand and only got a sneeze after several attempts. My wife pulled me around the block with the Jeep a few times and it my have started and died but it didn’t last long enough for my to really know.
I’m at my wits end trying to figure this out.
One thing I’m not sure of is the valve stems all have removable lifters plugs that sits inside the bronze bushing on top of the tappers ( see photos below ). Is this normal?
I was going to post on the Early Ford Register (which I belong to) but lost my password.
Thanks.
Last edited by Robert Kiefaber on Thu May 19, 2022 7:01 pm, edited 1 time in total.
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- Posts: 3869
- 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
- MTFCA Number: 14383
- Board Member Since: 2020
Re: Model R Odyssey
I know nothing of R's, but 15-20# compression!??. That cant be except-able? Could you have a bad timing issue? Leave the rings out? I dont think a model T would run with that low compression. Model t compression is 50-55#
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Topic author - Posts: 56
- Joined: Tue Mar 05, 2019 3:38 pm
- First Name: Bob
- Last Name: Kiefaber
- * REQUIRED* Type and Year of Model Ts owned: 1906 model F, 1907 model R, 1915 centerdoor sedan, 1921 centerdoor sedan
- Location: Indiana
Re: Model R Odyssey
Checked and re-checked timing over and over and it seems ok.
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- Posts: 3869
- 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
- MTFCA Number: 14383
- Board Member Since: 2020
Re: Model R Odyssey
Yea, but you have no compression. By checked timing you looked @ when the valves open & close in relation to piston position? & the valves are fully seated?Robert Kiefaber wrote: ↑Thu May 19, 2022 7:03 pmChecked and re-checked timing over and over and it seems ok.
Did you diagram/document the event degrees? Its a good idea to do this for all cylinders.
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Topic author - Posts: 56
- Joined: Tue Mar 05, 2019 3:38 pm
- First Name: Bob
- Last Name: Kiefaber
- * REQUIRED* Type and Year of Model Ts owned: 1906 model F, 1907 model R, 1915 centerdoor sedan, 1921 centerdoor sedan
- Location: Indiana
Re: Model R Odyssey
I checked the timing by the piston travel method as described in my the model T engine book. I have also tried both carbs. It does seem to me like it does not get enough gas into the jugs. I have inspected the intake manifold for blockage and have installed new gaskets.
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- Location: Graham, Texas
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- Board Member Since: 2021
Re: Model R Odyssey
Is the valve clearance set correctly?
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Model R Odyssey
You might want to call Mark Atkins
in Richmond, Indiana.
I don’t know how busy he is
but I would take your car to him.
Call me if you want his number.
FJ
260-804-6695
in Richmond, Indiana.
I don’t know how busy he is
but I would take your car to him.
Call me if you want his number.
FJ
260-804-6695
Google “ Model T Transport “
MTFCA - MTFCI - MAFCA Member
MTFCA - MTFCI - MAFCA Member
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- Posts: 1361
- Joined: Thu Jan 10, 2019 3:54 pm
- First Name: Kevin
- Last Name: Pharis
- Location: Sacramento CA
Re: Model R Odyssey
Check compression again... this time take all the plugs out and spin the motor several revolutions as fast as you can. 1/4 turn pulls never seem to read good numbers.
It wouldn’t surprise me if the compression really is low. You stated “lapped valves”, a valves ability to seal is a result of spring force and valve seat surface area. As the seats wear they get wider, as they get wider they require more spring pressure to seal properly
It wouldn’t surprise me if the compression really is low. You stated “lapped valves”, a valves ability to seal is a result of spring force and valve seat surface area. As the seats wear they get wider, as they get wider they require more spring pressure to seal properly
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Topic author - Posts: 56
- Joined: Tue Mar 05, 2019 3:38 pm
- First Name: Bob
- Last Name: Kiefaber
- * REQUIRED* Type and Year of Model Ts owned: 1906 model F, 1907 model R, 1915 centerdoor sedan, 1921 centerdoor sedan
- Location: Indiana
Re: Model R Odyssey
Txgoat, I just went with the model t settings.
Jim, thanks I’m in Indiana and that would be great. I’ll give you a call.
Kevin, that is very interesting. Would I need longer springs?
Jim, thanks I’m in Indiana and that would be great. I’ll give you a call.
Kevin, that is very interesting. Would I need longer springs?
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- Posts: 1361
- Joined: Thu Jan 10, 2019 3:54 pm
- First Name: Kevin
- Last Name: Pharis
- Location: Sacramento CA
Re: Model R Odyssey
New springs of the correct length, maybe. But only if the originals are noticeably bent or have lost tension. Bent springs can cause valves to react slowly, and weak springs cause poor sealing. Either can make a good motor run bad. A motor with good sealing valves will start quickly and run strongRobert Kiefaber wrote: ↑Thu May 19, 2022 11:25 pmKevin, that is very interesting. Would I need longer springs?