Editing AFM (section)

==Pulling apart an AFM==

The [[RB30E]] AFM has an internal diameter of 63mm.

For Naturally Aspirated applications it would be desirable to increase the side of the AFM without needing to substitute for another vehicle AFM.

The following are pictures I have taken during the disassembly

This is the top side, removal of the lid will expose the circuitry and screw holes

[[Image:Afm91.JPG]]


The top plastic part sits on top of this piece, the metal connectors feed through and solder to the metal tags.
It is suggested that a desoldering gun or solder sucker is used to remove these.

[[Image:Afm92.JPG]]

See how the screw holes line up between the AFM housing and the metallic base

[[Image:Afm93.JPG]]

There is heat transfer compound paste between the AFM metallic base and the plastic component housing.

Two screws hold this on, some force is required to separate these components

[[Image:Afm94.JPG]]

This is the inside of the AFM.
There is a green coated copper connector inside which connects to the thermistor and hot wire.
These go to the metal connectors.

[[Image:Afm95.JPG]]

Finally the inside from the front, you can see the thermistor.

The hotwire was broken after attempted cleaning on this unit.

It will require replacement magnesium wire.

This is probably what they use for reconditioned AFMs which cost about $260.

[[Image:Afm96.JPG]]

* No responsibility will be taken for damage to AFMs, [[ECU]]s, engines etc. from use/misuse of this information
* Incorrect setting of Air Fuel ratios can cause damage to your engine!


-'''darkhalf'''