Abstract the following paper is intended to improve the fatigue behaviour of a complex aluminium valve geometry under high internal cyclic. The valve body is made with high strength iron castings provided with wide internal passages in order to minimize the flow pressure drop. Transmission repair manuals aw 5550sn 5551sn, diagrams, guides, tips and free download pdf instructions. On the 5550sn valve body, a clean core is not indicative of the function.
The valve body is made with high strength iron castings provided with wide internal passages, in order to minimize the flow pressure drop. I removed and reinstalled the valve body on the aisinwarner aw5550sn transmission. Using a transgo kit i replaced a couple of pistons that were included in the kit and freed up the slt, sls and slu solenoids. Some aw5550 valve body mysteries lets start with identifying the aw 5550 valve body and the differences that matter when youre choosing a replacement valve body. Revmax is the industry leader in both high performance and rebuilt oem replacement valve. This transmission is currently used by many different vehicle manufacturers, among them are. Toyotalexus a750ef, a760efh, a761e, a960ef, ab60ef. The af23335 is a fullyautomatic, five speed, electrically controlled, frontwheel drive transmission. There are four castings, which can be identified by either a letter cast into the valve body just to the right of the s4 solenoid or a blank spot. Diaphragm valves are key components of hygienic system design. Adapting to the aisin warner 5550sn valve bodysome things are less intimidating, if youre not the first one to do it. After valve body work, these shift adaptations must be cleared and relearned or shift feel complaints and reduced transmission life can occur. Aisinwarner aw5550sn valve body replacement in 2002 v70xc.
Note the location of oe checkballs during disassembly. Transmission repair manuals aw 5550sn 5551sn rebuild. Must note locations of adjustable steps prior to removal. At these flags per say, the test or inspection, frequently points to the valve body, as it accounts for the majority of the transmissions issues. I have performed this procedure twice, first on my 2002 v70 xc and later on my 2002 v70 t5. Cast and forged body diaphragm valves are the standard options here, both of which. Design rules for autofrettage of an aluminium valve body sellen. Valve body 9 6 7 8 rear control valve body 2nd rear control valve body 11e 10 3 2b 2a 5 4 oe spring middle control valve body front middle control valve body back 11 11c before removing oe boost sleeve, take note of the adjustable stepretainer location and ensure the sonnax sleeve is installed at the same height location. Sonnax zip kit aw5550snzip targets the root cause of multiple complaints by sealing the critical circuit pressure losses in aisin aw 555051sn valve bodies. This material is a route past the thin ice that other travelers have marked. A valve feather under spring pressure is seated in the valve body and exposed to system pressure.