Brake booster check valve

[LateFan]

Is this an original piece on our 86 eta motor in the brake booster vacuum line? It looks like a check valve. It's old and has original clamps.



But when I look for parts, the check valve is the 90 degree fitting at the brake booster itself. Like this, with seal...





Can I take it out? I'm trying to eliminate vacuum leaks and replace all hoses.

Thanks -

[LateFan]

Bump..

Has anyone seen this in-line valve? I'd like to replace with a one-piece hose.

[LateFan]

I don't know what this #13 vacuum tree-looking thing is in the realoem diagram. Nothing like that on our engine. But that's where the in-line check valve looking piece is in our hose. There wouldn't be 2 check valves in the hose, would there? Makes no sense.

I just ordered the 90 degree check valve and gasket from Blunt.

[Quinthirty]

#13 if I remember correctly is for the 325i models only. Its the one on the extreme left



Installed:

[paperplane94]

If you take it out you will not have any residual vacuum for power brakes when the engine is off.
So if you can live with that...

[LateFan]

No, I'd have the 90 degree check valve fitting at the booster itself. Just arrived from Blunttech - their OEM description calls it a check valve.

When I pull the old hoses off I'll see - maybe it has two check valves now...and why..?

[LateFan]

OK, just so there's a conclusion to this question, here are the old and new parts...

Old hose on the left has what looks like an in-line check valve with OEM clamps. The fitting at the booster is just an elbow.

The new part from Blunt is a check valve in the 90 degree fitting, plus new grommet.



That old vac hose was hard as a rock, and just broke apart when we bent it.

[efficient]

my e had a check valve like the one you replaced.