Automotive Air Conditioning Information Forum (Archives)

Brett on Wed October 08, 2014 9:33 AM

Year: 99
Make: Delphi
Model: 5154
Country of Origin: United States

Can anyone tell me how to remove the drive shaft from the cylinder casting piece? I want to completely separate the wobble plate and remove the pistons from the casting for a complete cleaning before reassembly. Somehow that little round thing in the middle of the 5 pistons ( as viewed from the piston crown side ) must come off. It seems to be what is keeping the shaft from being withdrawn from the cylinder casting. I can't figure it out an I'm usually pretty good at these things. Thanks in advance!

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Brett Reedy

wptski on Wed October 08, 2014 9:37 AM

This thread may help.

GM Tech on Wed October 08, 2014 10:41 PM

You must have a V-5 with the mechanical destroker option- that destrokes at rpms above 4000- Centrifugally allows discharge gas into crankcase when balance weight slides off center-- To remove it-it screws out with a special tool. I reseal V-5s all the time and don't ever take the destrokers apart. The destrokers were used on powerful engines like the camaros, and corvettes etc- the small 4 cylinder and 3800, and 3400 did not use the destroke option.

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

Brett on Fri October 10, 2014 1:58 PM

Just wanted to say thanks for your reply to my post. Take care

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Brett Reedy