Low compression.
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Topic author - Posts: 1070
- Joined: Sun Jan 06, 2019 12:18 pm
- First Name: John
- Last Name: Warren
- * REQUIRED* Type and Year of Model Ts owned: 14 Roadster, 25 Pickup , 26 Canadian Touring , and a 24-28 TA race car
- Location: Henderson, Nevada
Low compression.
I pulled the head off on my 26 because of low compression. I was thinking that I also had a head gasket problem like Steve. It was ok, so looking at rings and valves. I turned the engine over to center all of the pistons then put a cap full , approximately 3 tablespoons, of diesel into each cylinder and waited. At 15 minutes #3 cylinder was empty. Three hours and the others still have fluid in them. I’ll pull that one and see what’s going on.
24-28 TA race car, 26 Canadian touring, 25 Roadster pickup, 14 Roadster, and 11AB Maxwell runabout
Keep it simple and keep a good junk pile if you want to invent something
Keep it simple and keep a good junk pile if you want to invent something

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- Posts: 3743
- Joined: Sun Jan 06, 2019 10:53 am
- First Name: Tim
- Last Name: Wrenn
- * REQUIRED* Type and Year of Model Ts owned: '13 Touring, '26 "Overlap" Fordor
- Location: Ohio
- Board Member Since: 2019
Re: Low compression.
Well I'm no expert mechanic by any means, but looks like a ring job's in order. And also an oil change!!
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- Posts: 1174
- Joined: Thu Feb 21, 2019 1:20 pm
- First Name: Joe
- Last Name: Bell
- * REQUIRED* Type and Year of Model Ts owned: 24 Fordor
- Location: Tiffin Ohio
Re: Low compression.
Cylinder rings are always rotating, it is possible on that cylinder they are aligned, pull the piston and see? You are down this far why not rering it while you are there.
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- Posts: 1174
- Joined: Thu Feb 21, 2019 1:20 pm
- First Name: Joe
- Last Name: Bell
- * REQUIRED* Type and Year of Model Ts owned: 24 Fordor
- Location: Tiffin Ohio
Re: Low compression.
Also since it is a 26-7 block take a close look at exhaust valve are going into the cylinder, 75% of those blocks have crack issues there. Hope this helps.