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The way to check the front springs is to measure the distance of the bump stop to frame. It should be 2" for new springs.

That is normal. That second spring is meant to loosely wrap around the main spring as a safety measure if the leaf ever breaks

There is no need to use alcohol in your air system. All shops stopped using it in the 1990's due to the damage the alcohol did to the rubber seals. Now all trucks and busses use "automatic drains" . When the weight of water reaches a predetermined amount the valve opens expelling all the water...

That has happened to me several times.

Again for the "few" failures mentioned ( I think it was two) we never found out which oil they used, only that they said it was a synthetic. I have given you actual proof ( from Shells oil site and Meritors recommended oil site and from the engineer at "Tremec" plus my own use and the use of my...

OK first off, do you realize what diesel fuel does to rubber ? There is a reason you "must" use special fuel hose for in-tank use. The diesel will turn the rubber into a gelatinous mess. Second, having the second air valve installed in the rim will not allow you to take advantage of the tires...

Time to take that fuel tank out and have it thoroughly cleaned ! Sand-blasting sounds about right.

Yes that is the oil I was referring too. There is a commercial supplier a few miles from me. If you buy in bulk they will sell to you without a having a business license. You just pay the taxes.

Like anything, you must use the "proper" oil for the application. Those who said they used synthetic and then had failures were they using the correct fluid ? The one I mentioned is used by "Meritor" and other major manufactures and our transit department. It has a proven track record. Your...

Your correct about this problem. GM had this issue for several years in the 1980's with quite a few trucks. I have just installed a higher amp relay in all the 1980's GM trucks I have owned ( 5 now) . Another major problem GM had with their starters was "heat soak" . Shut off the vehicle after...

Your welcome. It's nice to have people appreciate what you have spent a lifetime learning. If only my son would show the slightest interest in anything mechanical. If it's not a video game he does not want to be bothered with it. In fact my wife had a "sit down" conversation with me about all...

In my opinion if your even asking "why" then don't get one. Like my best friend said once ( who collects Corvairs and Studebakers) "if you have to ask why then you won't understand" .

There are several "numbers" that all mean the case is heavy duty. The numbers 39 to 45 all mean heavy duty. If the case is not heavy duty you will see it very plainly at the case flange (mounts to engine block) . There will be three holes drilled for bolts on each side of the case for the heavy...

Todays project was installing the operating shaft assembly. It took me a few hours to clean-up the housing and tap out the 1/4" fine threads and the #12 hole for the housing cover, and polish the shaft and bushing. Picture 1 shows the clean shaft for the shaft spring and plate. The spring and...

How many guys is "Paycheck" sending private messages to ? I told him I would post all my responses here on the main forum. That way it will benefit the whole community when he finally fixes it.

I bought some of those special seals myself. I just cannot remember who I bought them from. Was it "welldigger" ?

The gasket kit is still available from "Ambac". Call Melody Feaster at 1-800-628-6894 . Tell her you need the gasket kit for the "PSB-6A" Bosch injection pump.

Now I need to install the operating shaft assembly and install and adjust the governor springs.

The TM says to install the "sliding sleeve" on the "fulcrum" then install it on the camshaft, but I found it much easier to install the sliding sleeve on the shaft and into the governor weights first (pic 1 & 6). Then you install the fulcrum into the housing (pic 2) then the oil baffle goes in...

Before I started on the governor assembly I reinstalled the main housing oil supply fitting. This is just easier before the housing is on.