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ABS pump scrap down and rebuild.

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nervewrecker
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ABS pump scrap down and rebuild.

Postby nervewrecker » May 14th, 2018, 9:09 pm

Ok, so I had an error with my abs system that was throwing a light (not CEL as I had previously posted, it was the handbrake and ABS light). Bought a used pump and slapped it in. Abs works, error gone but seems a valve had become stuck and no fluid was going to a wheel.
I decided to scrap them down and see if its salvageable.

Finished pump, really did not take pics before.

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The pump is comprised of and can be dismantled into three separate parts:

1 - Motor with an eccentric

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2 - Block that comprises of valves and a pair of pistons inside that the eccentric move when it rotates

Pistons

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Stems that contain the valves, two valve a wheel

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Inputs MC1, MC2
Outputs Front left and front right inputs

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Rear Left and Rear right

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3 - solenoid assembly that closes the valves next to block

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socket that receives the plug for the abs pump

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Solenoid assembly attached to the block

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Motor attached to block

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I cant remember offhand the screwdriver tip I used to remove the screws. Its 6 screws, 2 on the motor and 4 on the solenoid assembly. Swapped the block from the original ABS pump unto the motor and solenoid assembly from the used one and didn't have any issues.
Servicing included some cleaning up of the components and spraying through MC1 and MC2 with brake clean to make sure fluid comes through FR and RR and FL and RL respectively (MC1 handles Front right and rear right and vice versa for MC2). Also, a little grease inside where the eccentric moves inside the block.
Used some red silicone around the edges when assembling to make a proper seal to keep water out.
Also hit the old block a 500psi shot of nitrogen to see if it can free up.

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Why? Because I am the mad scientist :evilbat:

Hope I inspired someone or helped someone having brake issues.
Last edited by nervewrecker on May 14th, 2018, 9:29 pm, edited 2 times in total.

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Morpheus
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Re: ABS pump scrap down and rebuild.

Postby Morpheus » May 14th, 2018, 9:21 pm

Weeeeee so long I haven't seen one of these types of posts here. Well done sir.

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black start
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Re: ABS pump scrap down and rebuild.

Postby black start » May 14th, 2018, 9:33 pm

Good work man. Guess you finally sorted that issue with the brakes you were having...

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nervewrecker
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Re: ABS pump scrap down and rebuild.

Postby nervewrecker » May 14th, 2018, 9:40 pm

Yup, Ted_v2 on the forum gave me a lot of assistance in the troubleshooting.

JN240
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Re: ABS pump scrap down and rebuild.

Postby JN240 » May 15th, 2018, 5:22 am

Good work man

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air wick
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Re: ABS pump scrap down and rebuild.

Postby air wick » May 16th, 2018, 6:03 am

Nice work, most people just throw faulty parts out and replace.

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Dave
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Re: ABS pump scrap down and rebuild.

Postby Dave » May 16th, 2018, 11:37 am

I feel all warm and fuzzy inside, good going to see this kind of stuff again.

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nervewrecker
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Re: ABS pump scrap down and rebuild.

Postby nervewrecker » May 20th, 2018, 1:29 pm

Motor side uses a t25 star tipImage

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nervewrecker
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Re: ABS pump scrap down and rebuild.

Postby nervewrecker » May 20th, 2018, 1:29 pm

Solenoid uses t20Image

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sMASH
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Re: ABS pump scrap down and rebuild.

Postby sMASH » May 20th, 2018, 1:41 pm


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