Sunday, November 13, 2016

How to reset an early Foxbody Mustang Odometer

This is shockingly easy to do. If you have an early Foxbody Mustang and you get tired of burying the odometer's pathetic 85 MPH odometer in third gear when you have two remaining, well I have the solution for you.

Lets say you overhauled your mustang and I mean it's completely brand new from your restoration and modifications then this post is also for you.

A couple years back I got fed up with the Speedometer I had, so I went on a hunt for economical upgrade certified by Ford. 1982 was the first year for the Police Interceptor Mustang and I found what I was looking for in a salvage yard out in San Jose, California. 1982 was also the first year for the Ford 302 HO(High Output) V8 motor. The Ford Mustang's first Police Package included 140 mph speedometer. This car was marketed to be the car to chase the exotic imports that were out running the police in California.

San Jose, California had the biggest order of Police Interceptor Mustangs. I happen to have found a gauge cluster from one of them for $60.00, which is a steal of a deal, I am resetting the miles back to ZERO. Everything has been rebuilt in the car. I have Hobbyist Plates installed and the ODOMETER is EXEMPT due to it's year. Believe it or not my car before I started the rust removal only had 112,841 miles on it and since it was originally vinned as a 4 cylinder Mustang who really cares. No true collector value.  The car has been radically changed. Before starting this I express using caution on touching the face of the Odometer. You may inadvertently mark it, so take great care.

Cluster came with 59,579 miles on it.

All that needs to be done is this pin needs to be very carefully tapped out. This is tapped in from one direction and will need to exit the way it came in. 
From view point below it needs to go to out to the right.

Once the pin is pulled you can easily rotate the Miles back to Zeros

When reinstalling the pins with the gears it will appear as seen below. All you need to do is hook up a drill and walk the odometer forward till it Zeros out. 

Now all you do is reassemble and install. 

If you are not installing in your original year mustang be sure to swap the power ribbon or you will have an electrical fire. 

The 1979 Mustang has a unique wire harness only used that year and requires power ribbon from a 1979 Gauge Cluster to be installed. 1979 was a year of another oil crisis and all mustangs that year only came equipped with the 85 mph speedometer. Where is the fun in that.

This may not be an original Police Interceptor Mustang, but it will chase Porches Again...

Sunday, November 6, 2016

Mustang GT40 Head Valve Replacement

Best lapping compound to use is the fine stuff that is grease based. The water based I believe is too aggressive. A light coat over the contact point is all you need to lap in the valve and clean up the seat. 

New Valve from Ford Racing. 

This is the brand name the Machine shop used. Click image in Google Chrome to enlarge. 

The heads had to be completely tore down and rebuilt back up to get the valve seals all replaced.

Majority of these Teflon seals failed. 

New valve seal from felpro added and reassembled

To get this to release use the tool to apply clamping pressure than tap with dead blow hammer. You can then proceed to clamping down all the way till you can get the locks removed. Be careful when releasing the spring. 

These are the valve spring cap locks. 

This Sunday was pretty productive. 

when I took things apart I realized I had a clearance issue with the headers. I pulled out the Acetylene Torch heated till bright red and pounded the tubes inward to add more clearance.  

Much better you don't want your after market headers to contact the steering shaft. 

I love a good sleeper he he he
Coming soon I will be doing a write up on how to install new rear differential gears. This car will be getting 3.73 gear set installed with all new bearings. Complete overhaul of the rear-end.