Here we go again

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Model T Ford Forum: Forum 2013: Here we go again
Top of pagePrevious messageNext messageBottom of page Link to this message  By Spencer Vibert on Sunday, October 06, 2013 - 09:18 pm:

I am going to need your help on this one my T is in need of a valve job I have everything to do it but I would like some additional advice before I start taking it apart and do you think I should use the K.W.R wilson tool to time it or should I use some other method any help is appreciated thanks


Top of pagePrevious messageNext messageBottom of page Link to this message  By Craig Anderson, central Wisconsin on Sunday, October 06, 2013 - 09:46 pm:

You don't need to time anything for a valve job.
That job can be done "in frame" but if you are reaming the guides you'll need to disconnect the rear end and pull the engine forward a bit.......not Henry's greatest planning.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Spencer Vibert on Monday, October 07, 2013 - 06:48 am:

Alright thanks I should have the head off by this afternoon I will keep you informed


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Monday, October 07, 2013 - 07:19 am:

The KR Wilson tool you describe is meant to make the best of a worn out camshaft by adjusting the valve opening events to happen at the same time. This will make an engine with a worn out camshaft seem to run better, because it will idle smoother. By worn out I mean lobes worn enough to be non symmetric. Using the KR Wilson tool or method to set valve event timing is not ideal, it is a crutch for using junk parts.

You should check the camshaft for abnormal wear while doing the valve job. If it is has lobes that are not symmetric, it should be replaced. With a good camshaft you should use the recommended valve clearance measurements to set pushrod to valve lash.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Chris Barker, Somerset, England on Monday, October 07, 2013 - 08:00 am:

You can ream all the guides of a '26 Coupe (and therefore some other late models) with the engine in its normal location.
I made a guide clamped on the seat to try to guide the reamer, but I still had to recut the seats a little.
...and do put card below the guides to carry all the iron dust out of the engine!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bob Jablonski on Monday, October 07, 2013 - 01:31 pm:

Craig:

The KR Wilson piston position tool insures the timing of the valves to be open or closed at the same piston position on all cylinders.

It does take time to install new valves and set properly with this method, but does insure correct valve timing taking component part wear such as dished lifter tops. When lifters are worn, flat feeler guages will only measure the highest part of the lifter, not the depression in the lifter that the valve stem will actually contact..... giving false reading.

Valve lash will be different on all valves due to cam lobe, lifter wear, and connecting rod bearing wear..... but all cylinders will have timed valves and give a smooth running engine.

The other alternative is a proper teardown and rebuild with all new parts, then set the valves with feeler guage.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Craig Anderson, central Wisconsin on Tuesday, October 08, 2013 - 12:44 am:

If he doesn't mess with the camshaft all he needs to do is ream the guides, grind the seats, replace the valves and set the clearances.
I can't see making more out of a valve job than it is.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Spencer Vibert on Tuesday, October 08, 2013 - 02:54 pm:

Hey fellas I am just replacing and readjusting the valves I am not rebuilding this engine twice in the same year Because I just had it rebuilt the only thing that was not done was a valve job


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bob Jablonski on Tuesday, October 08, 2013 - 03:01 pm:

Spencer:

Please re-read my post. There is no set gap clearance for used parts. Those who use the piston position method are happy with the result. Friendly advise from a "dutch uncle".


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