My 63 F100 has a 223 that my uncle had rebuilt maybe 10-15 years ago now. Probably only has about 10k on it. Ever since I’be owned the truck, about 3 years, I’ve never been able to get a smooth idle out of it below700-800 rpm. The shop manual says idle should be around 450-500 rpm. I’m going to adjust the valve lash.
I recently found out the builder bored the engine .030 over. Will this affect my valve lash measurement?
Bored out cylinders and valve lash.
- ThinLizzy13
- Posts: 763
- Joined: October 5, 2012, 5:29 am
- Location: Catskills NY
Bored out cylinders and valve lash.
'63 F100 223 3OT
‘20 F150 XL
‘20 F150 XL
Re: Bored out cylinders and valve lash.
Should have no effect on valve lash adjustment.
Bill
1966 F100 Camper Special, now a short bed 4x4.
https://www.ford-trucks.com/forums/1644 ... build.html
1966 F100 Camper Special, now a short bed 4x4.
https://www.ford-trucks.com/forums/1644 ... build.html
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- Posts: 408
- Joined: December 27, 2009, 6:03 pm
- Location: durham missouri
Re: Bored out cylinders and valve lash.
To my knowledge, the only thing that could effect valve lash is a different cam profile.
Every day above ground is a good one
- ThinLizzy13
- Posts: 763
- Joined: October 5, 2012, 5:29 am
- Location: Catskills NY
Re: Bored out cylinders and valve lash.
Thanks guys. I’ll look through the paperwork and see if there’s any mention of a different cam.
'63 F100 223 3OT
‘20 F150 XL
‘20 F150 XL
Re: Bored out cylinders and valve lash.
a high performance cam certainly would idle rough.
Re: Bored out cylinders and valve lash.
Check base timing and advance. It sounds as if you may have a mis-match between carb and distributor.
The Ford Orphanage
Life's too short for boring vehicles!
My quest to develop a universal solvent is held up by the lack of a storage container.
Paul
Life's too short for boring vehicles!
My quest to develop a universal solvent is held up by the lack of a storage container.
Paul
- ThinLizzy13
- Posts: 763
- Joined: October 5, 2012, 5:29 am
- Location: Catskills NY
Re: Bored out cylinders and valve lash.
I put a “new” rebuilt carburetor on it a year and a half ago and rebuilt the dizzy (diaphragm was bad). I’m still rocking the load-o-matic setup. The timing marker is no longer on the engine so I’ve been setting it off vacuum. Last time I tried to set it the vac reading was lower than what I’ve read it should be, I think it was around 15-16. And it would flutter occasionally which I think means some sort of valve issue? I could always pull the head and check the valves I suppose...Toyz wrote:Check base timing and advance. It sounds as if you may have a mis-match between carb and distributor.
'63 F100 223 3OT
‘20 F150 XL
‘20 F150 XL