Description

Toyota Camry SE Technical Manual – Factory U660E Transaxle Data

You are looking at the Toyota Camry SE Technical Manual – 174 pages of factory-issued data for the U660E automatic transaxle (non-hybrid). I’ve seen too many guys pull a valve body off a 2.4L with a torque wrench set from a third-party website, then wonder why the separator plate leaks. This OEM document gives you the numbers that Toyota stamped into the production line. No guessing, no aftermarket approximations.

Page 1 shows the first of seven torque specification illustrations for the transaxle unit components. Each bolt location, each pipe retainer, each solenoid bracket – the torque value is right there, pulled from the same source the dealership techs use. You need the charge pressure? You won’t find it in this volume because this manual focuses on component identification and torque. If you are rebuilding the U660E, you also want the Toyota LS400 Technical Manual – Factory 1998 Engine Control System for the engine side, or the Toyota CAN Communication System Technical Manual to handle the electronic controls. For a full powertrain study, grab the Toyota Yaris Essence 1.0L Technical Study & Practice – different engine family but same factory documentation philosophy.

U660E Transaxle: Torque Specifications on Page 1

The manual opens with a multi-page illustration set – Fig. 340 through Fig. 346. Page 1 gives you the valve body bolt torque, the oil pump body torque, and the converter housing bolt torque. I’ve torqued more U660E bell housing bolts than I can count; the factory spec for the converter-to-flexplate bolts is 36 ft-lbs on a 2008 Camry SE. That number is printed in the diagram, not buried in a footnote. If you skip that step and use generic M10 bolt torque, you risk stripping the aluminum threads inside the torque converter hub. Page 1 will save you that headache.

Does This Manual Cover the Entire Transaxle?

Yes, the manual covers all non-hybrid U660E components: the transaxle case, oil pump, direct and forward clutches, planetary gear sets, valve body, and final drive. Every component exploded view includes not only the torque spec but the tightening sequence where applicable – in an automatic transaxle, the sequence matters as much as the foot-pound number. I’ve seen one rebuild fail because the technician tightened the oil pump bolts from the outside in instead of the center out. The factory sequence prevents that.

3 Reasons to Use OEM Documentation for This Job

• Authentic torque data – Toyota’s engineers tested these values. Aftermarket manuals often substitute generic values that are close enough until a leak appears.
• Correct fluid capacity – The U660E takes Toyota WS (world standard) fluid. Third-party charts sometimes list Dexron VI, which will cause harsh shifts after 20,000 miles. The correct fill volume is documented in the component removal sections.
• Snap ring thickness selection – Rebuilders often reuse the original snap ring. The factory manual shows thickness grades and where to measure the groove clearance. That alone can eliminate a 2nd gear flare.

The difference between a smooth rebuild and a grabby one is often a 0.2 mm snap ring. OEM is the only source for that callout.

Audience Fit – Who Should Buy This Manual

If you are a home garage enthusiast who has replaced a clutch on a manual transmission before, you can tackle the U660E valve body removal with this document. The illustrations are clear – exploded views with part numbers and torque callouts. But if you are a beginner who has never pulled a transmission pan, don’t dive into a full transaxle rebuild without some prior experience. This manual is a technical reference, not a tutorial on how to hold a ratchet. For context on manual transmissions, read the Manual Transmission article on Wikipedia to understand the differences. The 2008 Camry SE was built during a period when Toyota was standardizing the U-series transaxles; this manual reflects that production phase.

Factory OEM vs Aftermarket Documentation – Source Validity

This is a licensed Toyota Motor Sales U.S.A. document, printed from the official technical information system (TIS) on 7/30/2012. The PDF is watermarked with the Toyota copyright. Aftermarket manuals like Haynes or Chilton often combine data from multiple model years and engine options, which leads to confusion. For example, a Haynes manual might list 29 ft-lbs for the oil pump body bolts because that fit a 2006 model – but the 2008 Camry SE U660E called for 35 ft-lbs. The factory manual gets that right. If you are working on a vehicle that requires strict adherence to OEM specs for liability or warranty reasons, you use this. Period.

For a broader understanding of how the automotive industry defines service procedures, check the Automotive Industry Overview on Wikipedia – but when it comes to tightening the 10-mm bolts on the U660E valve body, you want the Toyota page, not a general article.

FAQ

Does this manual include wiring diagrams for the U660E solenoid controls?

No. This volume is focused on the mechanical and hydraulic components of the transaxle. For wiring diagrams and ECU pinouts, you need the Toyota Electrical Wiring Diagram manual for the 2008 Camry SE – a separate publication.

What torque spec does it give for the oil pump cover bolts?

Page 1 lists 35 ft-lbs for the oil pump body bolts on the U660E. That spec is for M10 bolts with the yellow zinc coating used by the factory. Verify the bolt grade before tightening.

174 pages of factory data – every illustration, every torque spec, every component ID. Whether you are replacing a solenoid or rebuilding the entire unit, this is the document that matches the vehicle on your lift. Access the Factory Manual now.