Adjustable Two Piece Valve lifter Question

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George Hand
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* REQUIRED* Type and Year of Model Ts owned: 1912 open express, 1920 touring, 1926 tudor-lisenced and insured, 1921tt project 1922 fendered chassis, 192x tt dootle bug 192xengine w/winch projects
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MTFCA Number: 28114
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Adjustable Two Piece Valve lifter Question

Post by George Hand » Wed Jul 08, 2020 11:10 am

Hope to be getting ready to assemble an engine soon & I was wondering if & what are you taking off the valve stems prior to installing new valves. For this build I will be using new vendor provided stainless valves. Thanks George
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Tim Williams
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* REQUIRED* Type and Year of Model Ts owned: 1925 Model T Speedster, 1922 Model t Speedster project
Location: Hillsboro, OR

Re: Adjustable Two Piece Valve lifter Question

Post by Tim Williams » Wed Jul 08, 2020 11:32 am

are your lifters adjustable? When I did mine which had non adjustable lifters of all the new valves, I only had to grind one stem to get the clearance. with adjustable lifters i wouldn't think you would have to grind any of the stems. if my thinking is not correct please I welcome the input.

Tim
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paddy1998
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MTFCA Number: 50356

Re: Adjustable Two Piece Valve lifter Question

Post by paddy1998 » Wed Jul 08, 2020 12:10 pm

George Hand wrote: ↑
Wed Jul 08, 2020 11:10 am
 Hope to be getting ready to assemble an engine soon & I was wondering if & what are you taking off the valve stems prior to installing new valves. For this build I will be using new vendor provided stainless valves. Thanks George
I just did mine with the new stainless valves.

I took off about .100 or so to get room to adjust. I just did it with the grinder in stages measuring as I went. As I recall they were 5.076 and I knocked them down to anywhere from 5.010 to 4.985 give or take. The Harbor Freight digital caliper came in handy.

Careful, those stems get HOT! :o

If I had to do it again I would buy for the special installation tool and the special thin adjustment wrenches.
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paddy1998
Posts: 190
Joined: Tue Feb 05, 2019 4:28 pm
First Name: Scott
Last Name: Delaney
* REQUIRED* Type and Year of Model Ts owned: 1922/23 Touring
Location: Joliet, Illinois
MTFCA Number: 50356

Re: Adjustable Two Piece Valve lifter Question

Post by paddy1998 » Wed Jul 08, 2020 12:18 pm

paddy1998 wrote: ↑
Wed Jul 08, 2020 12:10 pm
George Hand wrote: ↑
Wed Jul 08, 2020 11:10 am
 Hope to be getting ready to assemble an engine soon & I was wondering if & what are you taking off the valve stems prior to installing new valves. For this build I will be using new vendor provided stainless valves. Thanks George
I just did mine with the new stainless valves.

I took off about .100 or so to get room to adjust. I just did it with the grinder in stages measuring as I went. As I recall they were 5.076 and I knocked them down to anywhere from 5.010 to 4.985 give or take. The Harbor Freight digital caliper came in handy.

Careful, those stems get HOT! :o

If I had to do it again I would buy for the special installation tool and the special thin adjustment wrenches.
Note: You should test the fit before deciding if you need to grind the stems. Out of the box my clearance was around .006 or less, which is why I ground the stems down.
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