[tdelker]

2005 XT. Replacing the timing belt TODAY. Just got the covers off, and there are no timing belt guides. Do I just put it back together as is? It's gone 104k without them...

Tom

 

[cardoc]

No guides? That is normal. Chained engines use guides, belted don't.

 

[tdelker]

Shows them in the FSM. Also in Meaty's online video... Strange

 

[ntippet]

Some have guides, some don't.

Most of the DOHC turbo engines I have worked on have a guide over the crank and cam sprockets.

Subaru Repair Seattle, Subaru Service Seattle - Seattle Subaru Repair

Looks like the manual transmission's got them.
http://opposedforces.com/parts/legacy/us_b13/type_42/engine/camshaft_and_timing_belt/illustration_2/
http://opposedforces.com/parts/legacy/us_b13/type_43/engine/timing_belt_cover/illustration_1/
You can add them if you like, 5 per engine.

 

[highest_vision]

My engine was missing the one it is supposed to have around the crank. I wouldn't sweat it.

James

 

[tdelker]

Thanks guys! Looking at the link from ntippet, only the manuals have them. I didn't have a single one. Makes sense. Just surprised me because the FSM didn't mention automatics not having them.

Of course, on the check out, I had a small crack in my heater bypass hose from the water pump. Sigh. Dealer's open monday. Couldn't find it locally, although I saw a number of aftermarket options.

In retrospect, I wouldn't change the water pump. It looked fine, but was a lot more work. Hoses were hard to get off. I would at least have used the factor gasket, as I felt really unsure of the torque with the cardboard gasket. It never seemed to click quite right. Hope I don't regret it.

Thanks all!

Tom

 

[Glennda5id]

The 2.5's with manual transmissions got them to prevent the belt from skipping or jumping a tooth if crank is turned in reverse suddenly. This is only possible in a manual transmission car.

 

[radio head]

The 2.5's with manual transmissions got them to prevent the belt from skipping or jumping a tooth if crank is turned in reverse suddenly. This is only possible in a manual transmission car.

I didn't even think it was possible to shift into reverse while the vehicle was moving forward in an MT car.

 

[tdelker]

I didn't even think it was possible to shift into reverse while the vehicle was moving forward in an MT car.

I suppose the point is that the manuals are protected against sudden changes in engine loads, something that isn't needed in automatics.

 

[1 Lucky Texan]

I didn't even think it was possible to shift into reverse while the vehicle was moving forward in an MT car.

suppose a tow truck tried to drag one off while in gear?

 

[Glennda5id]

I think its an issue related to the manual trans being directly coupled to the motor and in certain situations the movement of the car can put a sudden reverse load on the motor. Situations where a driver stalls the motor when letting off the clutch improperly come to mind.