[SteveDuNord]

Hi.

I can't find any engine ancillary diagrams anywhere for this engine. I can spot a brake servo, exhaust manifold, etc, but would have no idea what a vacuum pump even looks like. I think I know the general direction it's meant to be located - front right as I'm looking at the engine from the grill??

I need to know where it is so I can do a proper vacuum gauge test.

TIA.

 

[rumb]

There is no vacuum pump. The vacuum comes off the intake manifold.

Vac Visual: Quick Guide to Vacuum Gauge Readings - OnAllCylinders

Intake manifold vacuum is a key indicator of engine performance. By measuring vacuum under different engine loads and conditions, you can track down problems within your engine and make the …

www.onallcylinders.com

Your 17" steady reading means your engine is in great condition.

 

[SteveDuNord]

There is no vacuum pump. The vacuum comes off the intake manifold.

Vac Visual: Quick Guide to Vacuum Gauge Readings - OnAllCylinders

Intake manifold vacuum is a key indicator of engine performance. By measuring vacuum under different engine loads and conditions, you can track down problems within your engine and make the …

www.onallcylinders.com

Your 17" steady reading means your engine is in great condition.

I was starting to think that might be the case. Thought I was going nuts.

Wait... how did you?

Thanks very much.

 

[ianrandom]

Hi.

I can't find any engine ancillary diagrams anywhere for this engine. I can spot a brake servo, exhaust manifold, etc, but would have no idea what a vacuum pump even looks like. I think I know the general direction it's meant to be located - front right as I'm looking at the engine from the grill??

I need to know where it is so I can do a proper vacuum gauge test.

TIA.

Welcome. These are gorgeous cars, lucky you.
If you could stick it in your profile that would be great.

Glad you got your answer already. Show us pics, I love W116.

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[hineywineries]

If you have 116.020 280S you have a vaccum pump. If you have a 116.024 280SE you don't. They had to install a pump on the front of the engine, because that pancake booster didn't cut it.

 

[hineywineries]

If you have 116.020 280S you have a vaccum pump. If you have a 116.024 280SE you don't. They had to install a pump on the front of the engine, because that pancake booster didn't cut it.

PS part # 000 230 03 65