Flathead Ford Valve Removal Tools

Home    Parts Drawings     Web Links     Tune-Up & Service     Serial Numbers     Engine ID     Trans ID     Model Identification     Terms of Sale     Contact Us    Our Online Store    Our Catalog

How to Remove Those Stubborn Valves and Valve Guides

The Ford flathead V8 engines produced from 1932 to 1954 were designed with removable valve guides, which sat in machined bores in the block, alongside the cylinders. The valve, valve spring, valve keepers, and the valve guide were intended to be installed and removed as a single assembly. This assembly is held in place by the valve spring tension, and a steel retaining clip, which is commonly referred to as the "horseshoe clip" because of its general shape. The first drawings below show the basic assemblies as used from 1932 to 1948, and the later style as used from 1948 through final production in 1953 (USA) and 1954 (Canada). Be sure to follow the links to Page 2 and Page 3 on this subject.

The original style used a split (two piece) valve guide and the valve had a mushroom tipped stem. The later design used a one-piece valve guide and a straight valve stem. It is not unusual to see the later style valve assembly used with rebuilds of the 1932 to 1948 engines, since they interchange and the late style assembly is generally easier to remove.

The original style valve with the mushroom tip will not pull out of the valve guide due to the large end. The valve and guide assembly must be removed as a unit in order to allow the split guide to come apart and remove the valve. Some mechanics have, after removing the valve spring and retainer, cut the valve stem in two, allowing the valve to be removed from above and below. The general procedure for this is to:

  1. Remove the horseshoe shaped valve guide retainers. The C-shaped remover tool (see following pages for pictures) works well.....engage the tip into the hole in the retainer and use a large hammer to drive the clips down and out.

  2. Compress the valve spring; tip the valve spring retainer and ease it out with a screwdriver. It will move about easily but it takes some nudging to flick it off the valve stem by that mushroom end.

  3. Pull the valve up (outward) as far as it will go (mushroom end is up against the lower end of the valve guides.

  4. Using the valve spring compressor bar, pry the valve spring down and out.

  5. At this point you have some options. If you plan to replace the valves and guides, you can cut the valve (as close to the block deck as possible). This should allow you to take a socket (ie 1/2" deep) and drive the split guide down into the valve galley. The guide will fall into the open and come apart. The remaining piece of the valve stem can easily be removed.

  6. If you wish to keep the valves intact, you will have to find a tool that reaches down past the valve head and drive the guide down and out as described above. This tool is basically a sturdy bent rod that lets its shape go past the valve head and reach the top of the valve guide for impact purposes. Another way is to use a screw type guide remover (see picture on following pages) that jacks the guide up from the valve galley. 

Unless the engine is to be totally rebuilt and the block cleaned, you may not want bits and shavings of metal to drop into the valve galley. So, it is usually recommended that you remove the assembly (taking it out the top of the block) before further disassembly can be done. Unfortunately, most of these old flathead V8's were run years ago with non-detergent oils and heat and other corrosion tended to make the valve guides stick into the guide bores. Since you don't know how much wear has occurred in the valve guides, it's generally a good idea to replace them, as well as the valves and all the related hardware. 

 

The late style valve can be removed easily from above, once the valve spring retainer & lock are removed. The valve guides on these and the early style engines can still be difficult to remove. Old, dirty engine oil has often varnished and baked the valve guide into the bore and they become stuck. Soaking all the valve parts in advance with a penetrant will often help with the disassembly. Frequently used is diesel fuel, brake fluid, automatic transmission fluid, or other fluids that will penetrate into the tight clearances.

Refer to the following web page for pictures of common tools used by mechanics to aid in valve removal in the Ford and Mercury flathead V8 engines.

GO TO PAGE 2

Return to Flathead V8 Engine Drawings 

Return to VANPELTSALES.COM

Copyright 2014 - VANPELT SALES LLC - All rights reserved