3SGE BEAMS Timing chain modification?

[SilverRA23]

Fark me, what is the box hanging off the radiator support?

Turbo and intake manifold big enough? They are huge!

[AE112R]

I have seen the timing belt modified in the 3S family engines to route the belt in a simple way eliminating the complicated timing belt routing ,

This is only do-able if external dry sump oil pump is used.

[JadeEstevez]

That is over kill... I LOVE IT!

[3jcelica]

Intercooling must be out nowadays Water pump? must be external also?

If you coul seal up the whole area and lubricate the rubber belt like the new subaru engines, belts are supposed to last the life of the engine.

Personnally I would bother

[wagonist]

The only belts I've heard of failing before their recommended was on the old Subaru Leone. When they went from pushrod to OHC, the belt interval was supposed to be 100 000km, but they started failing at 80-85 000, so Subaru shortened the interval to 75 000km. Then they changed the design in the Liberty.

Every other failure has been due to pulley bearings failing or not doing the belt at the specified interval, or something else rather than the belt.

The advantage of chains (and why they've become a little more popular again) is that they're thinner.
The last model Holden Craptiva (petrol engine) has issues with it's timing chain stretching enough over as little as 30 000km to throw an error in signal matching between the Camshaft sensor & the Crank Sensor.

If belt life concerns you, just do it more often. The factory listing is the maximum interval.

[grue0038]

Mitsubishi 4G63s are known to throw belts and destroy heads. I personally know of about 5 such failures over the past 15 years, and none were past the belt change interval.

Audi 1.8t and 2.7t have been known to drop belts before the change interval too. Audi changed the belt interval TSB on the 1.8t a few years back because of this.

But they're not toyota. I've never heard of a failure on a toyota that wasn't induced by something else seizing up.

[toyota1515]

This is only do-able if external dry sump oil pump is used.

Yeap, as you can tell from the pictures!

[toyota1515]

Mitsubishi 4G63s are known to throw belts and destroy heads. I personally know of about 5 such failures over the past 15 years, and none were past the belt change interval.

Audi 1.8t and 2.7t have been known to drop belts before the change interval too. Audi changed the belt interval TSB on the 1.8t a few years back because of this.

But they're not toyota. I've never heard of a failure on a toyota that wasn't induced by something else seizing up.

The only reason 4G63 messed up belts are "improper installation" otherwise i haven't seen a 4G63 timing belt failure at all!

VW never messed with them at all!