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> CFR MPS rebuild, Copy of instructions
Ron914
post Apr 28 2025, 10:52 PM
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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?
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rjames
post Apr 29 2025, 08:50 AM
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The hex tool is used in conjunction with the screwdriver.
I recommend you go to Anders web site to learn how the MPS works.
MPS Info

In brief, there are 3 main adjustment mechanisms: the inner screw (adjust with screw driver), the outer screw (adjust with hex tool) and full load stop screw (adjust with Allen wrench if using the new one that came with the kit, or screw driver if using the original).

The inner screw will also turn the outer screw unless you keep the outer screw from turning by using the hex tool while adjusting the inner screw (the screw driver fits inside the hex tool).

Either tap size will work. Just depends on how bad your threads are after removing the original full load drop screw. Go slow when trying to remove the screw. Trying to force it to turn before moving all the resin/glue will result in having to drill it out.

The other tool you’ll likely need is a wide band O2 sensor to tune the MPS after you rebuild it.

Good luck!
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Ron914   CFR MPS rebuild   Apr 28 2025, 10:52 PM
MDTerp   RE: CFR MPS rebuild   Apr 29 2025, 04:26 AM
Ron914   Thank you Michael. @[url=http://www.914world.c...   Apr 29 2025, 08:27 AM
rjames   The hex tool is used in conjunction with the screw...   Apr 29 2025, 08:50 AM
Ron914   The hex tool is used in conjunction with the scre...   Apr 29 2025, 09:31 AM
ChrisFoley   The reason I recommend using those smaller taps as...   Apr 29 2025, 08:54 AM
ChrisFoley   That's an old tool set pictured. Currently, I ...   Apr 29 2025, 08:57 AM
ChrisFoley   Hi Ron, I was just on the phone with Tom yesterday...   Apr 29 2025, 09:05 AM
Ron914   Hi Ron, I was just on the phone with Tom yesterda...   Apr 29 2025, 09:34 AM
emerygt350   Those look like good improvements on an already gr...   Apr 29 2025, 09:49 AM
rjames   Don't overthink it. If both sizes are in the...   Apr 29 2025, 10:10 AM
ChrisFoley   I've been including M4 screws & nuts for a...   Apr 29 2025, 10:37 AM
MDTerp   For me it was also very helpful to install a vacuu...   Apr 29 2025, 01:05 PM
emerygt350   For me it was also very helpful to install a vacu...   Apr 29 2025, 03:20 PM
TargaToy   Well crap. I didn’t realize there was no longer...   Apr 29 2025, 07:09 PM
Ron914   Well crap. I didn’t realize there was no longe...   Apr 29 2025, 07:47 PM
emerygt350   I believe Chris is looking for a replacement.   Apr 29 2025, 07:29 PM
Ron914   After reading a bit of Paul Anders MPS Diagnosis I...   Apr 29 2025, 08:48 PM
JeffBowlsby   After reading a bit of Paul Anders MPS Diagnosis ...   Apr 29 2025, 10:08 PM
emerygt350   I agree. I think anders is really doing the deep...   Apr 30 2025, 04:33 AM
Ron914   I agree. I think anders is really doing the dee...   Apr 30 2025, 06:18 PM
worn   I needed to rebuild my MPS but Chris Foley is out...   Apr 30 2025, 05:30 PM
Ron914   I needed to rebuild my MPS but Chris Foley is ou...   Apr 30 2025, 05:41 PM
emerygt350   Don't worry, the mps is all self contained. T...   Apr 30 2025, 06:49 PM
Ron914   Don't worry, the mps is all self contained. ...   Apr 30 2025, 07:20 PM


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