1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Front oil pressure regulator

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Old Dec 9, 2008 | 08:25 PM
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Front oil pressure regulator

Hi guys

anyone care to explain how to shim the damned thing?

Im not exactly sure on how you do that...


Any input would be great.

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Old Dec 9, 2008 | 09:34 PM
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remove it and put two washers underneath the spring.
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Old Dec 10, 2008 | 09:57 AM
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Originally Posted by diabolical1
remove it and put two washers underneath the spring.
between the piston and the spring?
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Old Dec 10, 2008 | 06:16 PM
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Or between the spring and housing. Either way, it preloads the spring.

On second thought, put it in the middle.

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Old Dec 14, 2008 | 01:58 AM
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If you put a shim between the oil regulator and the housing,you also have to modify the back one by putting it on a 2 ton press and pressing it down.Factory pressure is 60. After modifying you should get at least 80.
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Old Dec 14, 2008 | 06:27 PM
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Originally Posted by JoeyMazda
If you put a shim between the oil regulator and the housing,you also have to modify the back one by putting it on a 2 ton press and pressing it down.Factory pressure is 60. After modifying you should get at least 80.
I am modifing it, thanks
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Old Dec 14, 2008 | 07:58 PM
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Originally Posted by JoeyMazda
If you put a shim between the oil regulator and the housing,you also have to modify the back one by putting it on a 2 ton press and pressing it down.Factory pressure is 60. After modifying you should get at least 80.
using a vice semi works as well, as does using a third gen regulator.
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Old Dec 14, 2008 | 08:36 PM
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What is this business of a press? I put 3 washers in the rear regulator when I rebuilt my S5 N/A. To put it back together I just pushed the piston down with a screwdriver before I pushed the new roll pin in.
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Old Dec 15, 2008 | 05:57 PM
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Disregard my last answer,you should put a shim between the piston & the regulator.
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