CAYC engine, 1.6 TDI - Oil pump timing belt replacement?

Good morning

Unfortunately, I couldn't find anything about that in my documentation, but the Cayc engine does have a timing belt that drives the oil pump, and it's located underneath the oil pan.
When I was doing the timing belt replacement, there was this small belt involved.

Does this also have a maintenance interval of 10 years or 210,000 km? The current mileage is 205,000 km.
Or does it last forever because it runs in oil?

Hi,

"The pump is driven by a separate, maintenance-free timing belt without a tensioner."
The Conti timing belt kit does not include the small timing belt, and in my opinion, it doesn't need to be replaced.
Then the water pump would make more sense to replace if you've already taken everything apart!

Best regards, Richard.

Okay, thank you for your quick response!

It is included in my Conti set. The colleague from the parts department specifically asked me if I wanted to take it with me...

Hi.
"When I use oil additives with timing belts, all the warning lights come on in my Ford EcoBoost and PSA 1.2 engines. The belts seem to be deteriorating, so I would recommend replacing them."

Rüdi wrote:

Hello. When I use oil with timing belts, all the warning lights come on in Ford Eco Boost and PSA 1.2 engines, they dissolve, and I would replace them

.
PSA engines also feature a camshaft drive system, which results in increased stress and strain.
In the 1.6 TDI engine, "only" the oil pump is driven by the timing belt, which, of course, also has disastrous consequences if the timing belt fails.
When using approved (quality) oil and adhering to the recommended oil change interval, I don't foresee any problems with the oil pump timing belt.

E30_V8 wrote:

You say that the SSP states "maintenance-free". Does it also say anywhere that it is recommended to replace the belt at the same time if the oil pan has been removed? I mean, if it says "maintenance-free," then surely it's intended for a lifespan of 250,000-300,000 miles. A motor shouldn't be able to last much longer.

According to VW, gearboxes, like many other components, are also maintenance-free.

Whether it's the camshaft or the oil pump that seizes, the result is usually engine damage.

In PSA vehicles, wear from the timing belt can cause the oil pump's oil strainer to become clogged.

The cost of the belt is not proportional to the cost of a belt for any other engine.

Next spring, I'll be replacing the timing belt on my AMF, and while I'm at it, I'll also replace the chain for the oil pump.

Hello.

@ Martininii:

Quote:

You are saying that the SSP states "maintenance-free". Is there anything recommended there? Is it possible to replace the belt while the oil pan is already removed? "I mean, if it says 'maintenance-free', then..." It's definitely referring to a mileage of 250,000 to 300,000 kilometers. A motor shouldn't be allowed to live longer than a certain period.

No, the SSP (Service Service Manual) contains a description of the oil pump's drive and function, but it does not include a recommendation for replacement.
In an article in the MTZ (Motortechnische Zeitschrift) from 2010, it states, among other things: "The belt drive is designed for..."
"Designed for long motor life."

That's obviously a very vague statement...

In the "Tdi Mileage" section of this forum, there are definitely some 1.6 CR engines that, with proper maintenance, have achieved impressive mileage.
(without replacing the oil pump belt) can last for over 300,000 km.

On the Dayco website (which was/is an exclusive supplier for VW), you can find information stating that these belts (BIO = Belt In Oil) are different.
They are designed as dry-running toothed belts.
The material used for the dental bonding is typically made from aramid/Kevlar and is coated with a PTFE protective film.

@ Rüdi:

Quote:

"The cost of the belt is not proportional to the cost of a different motor."

I completely agree!
If the oil pan is already removed, then it's definitely a good opportunity to replace the belt.
But I personally wouldn't remove the oil pan just because of the timing belt.

Best regards, Richard.