CFR MPS rebuild, Copy of instructions Options

[Ron914]

I needed to rebuild my MPS but Chris Foley is out of the kits due to no longer having a supplier of the BE-CU diaphragms . I was lucky enough to have a member here offer to sell me his spare parts kit from Chris (Thanks Tom). His kit did not have the instructions with it so I am wondering if anyone has a copy of those instructions?

[emerygt350]

I agree. I think anders is really doing the deep dive, which is great, but you don't need to overthink it. It is three adjustments and you can watch the outcome yourself.

The initial setup is easy, just do as Chris says, then check the curve to make sure it has the right shape, pop it in the car and tweak the inner and full stop till it is doing what you need.


And you don't want it leaking. Not only does that make initial setup and idle difficult, but a small leak probably means a cracked diaphragm and that will break as you start to actually drive it and stress it. When I bought mine it went from running good enough to broken diaphragm pretty quick as I was daily driving it.

And ignore the inductance numbers themselves. You just want to make sure the curve looks right you just want to plot the inductance at each inhg increase or decrease in vacuum.

[Ron914]

I agree. I think anders is really doing the deep dive, which is great, but you don't need to overthink it. It is three adjustments and you can watch the outcome yourself.

The initial setup is easy, just do as Chris says, then check the curve to make sure it has the right shape, pop it in the car and tweak the inner and full stop till it is doing what you need.


And you don't want it leaking. Not only does that make initial setup and idle difficult, but a small leak probably means a cracked diaphragm and that will break as you start to actually drive it and stress it. When I bought mine it went from running good enough to broken diaphragm pretty quick as I was daily driving it.

And ignore the inductance numbers themselves. You just want to make sure the curve looks right you just want to plot the inductance at each inhg increase or decrease in vacuum.

@emerygt350
The fun thing about this 2056 motor is I'm getting some new cool tools and meters/gauges .


I will need some instruction when it comes time to use this LCR .I get the inductance value I assume from the MPS ,which pins do I use . I have seen some curves shown here before but I am not sure if I can create them ,anyway we will save this for when I get there.

I hope when I finally get it all dialed in I notice a performance difference .So based on your response to my last post about Anderfs documents it sounds like I'm over thinking this . I am a little intimidated about opening my MPS , Seems like there are some conflicting information , Is there electrical wires connected to the aneroid cells that I have to be careful of? When I separate the case will they stay with the main part? Is it as simple as drilling out the rivets and splitting the case and just replacing the diaphragm . Putting the diaphragm half in a vise to drill out the epoxy seems risky while trying to get it secure in the vise to work on without cracking the case .I purchased some deburing tools to clean the threads first before running the tap through to clean the threads up . I get my TB back from Mark this Friday so I would like to install it and then put my MPS back in and see what difference rebuilding the TB made .The car was idling better and when I drove it seemed to have plenty of power when I last drove it . Mark had to make me a new butterfly plate so mine was pretty bad as seen here when lighting from underneath.