Problem fitting standard adjustable lifters
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
1915ford
Topic author - Posts: 110
- Joined: Sun Mar 27, 2022 10:54 pm
- First Name: Mark
- Last Name: Cameron
- * REQUIRED* Type and Year of Model Ts owned: 1915 touring
- Location: Owatonna, MN
Problem fitting standard adjustable lifters
Doing a full rebuild on my 22 centerdoor engine. Everything shows minimal wear so i ordered standard adjustable lifters. The problem is they wont go into the block. They seem to be one or two thousandths too big. Suggestions? Is there a reamer out there that would work for this?
-
Scott_Conger
- Posts: 6779
- Joined: Sun Jan 06, 2019 11:18 am
- First Name: Scott
- Last Name: Conger
- * REQUIRED* Type and Year of Model Ts owned: 1919
- Location: not near anywhere, WY
- Board Member Since: 2005
Re: Problem fitting standard adjustable lifters
I would start with:
what exactly is the diameter of the lifters?
what exactly is the diameter of the lifter bores?
what exactly is the diameter of the lifters?
what exactly is the diameter of the lifter bores?
Scott Conger
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves™
Obsolete carburetor parts manufactured
Tyranny under the guise of law is still Tyranny
NH Full Flow Float Valves™
Obsolete carburetor parts manufactured
-
Adam
- Posts: 1603
- Joined: Sun Jan 06, 2019 11:57 am
- First Name: Adam
- Last Name: Doleshal
- * REQUIRED* Type and Year of Model Ts owned: ‘13 Touring, ‘24 Touring, ‘25 TT dump truck, ‘26 Tudor, ‘20 Theiman harvester T powerplant, ‘20 T Staude tractor
- Location: Wisconsin
- Board Member Since: 2000
Re: Problem fitting standard adjustable lifters
Fairly common. Tooling wore and the factory put undersize lifters in instead of replacing the tooling (or they made the guides undersize to use up undersize tappets). I’ve seen it probably about a dozen times. Run a 7/16” reamer thru the guides to take them from undersize to “standard” and your “standard” lifters will fit fine. There are a bunch of parts like these when you get into blueprints in the archives. They generally say something to the effect of “use when …. is undersize/oversize”.
-
jsaylor
- Posts: 443
- Joined: Sun Jan 06, 2019 5:25 pm
- First Name: John
- Last Name: Saylor
- * REQUIRED* Type and Year of Model Ts owned: 1921 Touring, 1927 Tudor
- Location: Citrus Heights, Ca
- Board Member Since: 1999
Re: Problem fitting standard adjustable lifters
Before you start reaming out the block, follow Scott's advice and measure the new lifters and make sure the vendor sent you the correct ones.
-
1915ford
Topic author - Posts: 110
- Joined: Sun Mar 27, 2022 10:54 pm
- First Name: Mark
- Last Name: Cameron
- * REQUIRED* Type and Year of Model Ts owned: 1915 touring
- Location: Owatonna, MN
Re: Problem fitting standard adjustable lifters
Thanks Adam. Thats exactly what i needed to know.
-
Dan Hatch
- Posts: 5514
- Joined: Tue Jan 08, 2019 7:31 pm
- First Name: Dan
- Last Name: Hatch
- Location: Alabama
Re: Problem fitting standard adjustable lifters
Measure twice, cut once. That hold true here as well.
-
Chris Bamford
- Posts: 245
- Joined: Fri Jan 04, 2019 10:01 pm
- First Name: Chris
- Last Name: Bamford
- * REQUIRED* Type and Year of Model Ts owned: 1924 Speedster 1926 Touring
- Location: Edmonton AB Canada
Re: Problem fitting standard adjustable lifters
I cut this damned board twice, and it’s STILL too short!
-
BRENT in 10-uh-C
- Posts: 483
- Joined: Mon Jan 07, 2019 11:21 am
- First Name: Brent
- Last Name: Terry
- * REQUIRED* Type and Year of Model Ts owned: 1909 Tourabout, 1914 Runabout, 1914 Touring, 1916 Speedster, 1925 Speedster, 1926 Hack
- Location: Eastern Tennessee
- Board Member Since: 1999
- Contact:
Re: Problem fitting standard adjustable lifters
Mark, see if a local machine shop can hone the lifter bores for you instead of reaming.
It has been my experiences that most chucking reamers need a minimum of about 2% of the diameter (-in this scenario about 8 thousandths) to keep the flutes loaded during the cutting process. Otherwise, you generally get chatter marks in the bore finish which will lead to galling. Any performance machine shop should have a Lifter Hone, and likely two or three strokes will size them for your new lifters. If you cannot find a shop, then order a set of 0.015" over tappets (0.452) and purchase a 0.4535" Reamer from McMaster, and that should put your tappet clearance to around 0.0015 which should be perfect.
It has been my experiences that most chucking reamers need a minimum of about 2% of the diameter (-in this scenario about 8 thousandths) to keep the flutes loaded during the cutting process. Otherwise, you generally get chatter marks in the bore finish which will lead to galling. Any performance machine shop should have a Lifter Hone, and likely two or three strokes will size them for your new lifters. If you cannot find a shop, then order a set of 0.015" over tappets (0.452) and purchase a 0.4535" Reamer from McMaster, and that should put your tappet clearance to around 0.0015 which should be perfect.