What hose is this?

[MattyB]

Top of the engine bay. Crankcase breather? The foam on mine isn't looking very healthy, but I'm unable to locate a part number of DeRoure. I assume the foam is purely for protection?

[agentdr8]

Ventilation hose.  #18

But you can just replace it with any vacuum hose of similar inner diameter. The foam cover is likely for abrasion and maybe heat protection. 

[Julian73]

Hose runs from the crack case PCV valve to the intake manifold to reduce crack case pressure buildup, PCV valve and baffles before it show stop oil vapor blow by, however on the DC cars this does occur under full throttle track usage, on the S2 (4xx) cars, Lotus moved the PCV valve from this Toyota position to the aft cam cover, this dis reduce blow by.

[John z]

If you give me a few days, I may have 1 laying around from when I added the SC to my NA.

[John z]

Pay shipping and it's yours. 

[ramjet]

I'm going to go with rubber.

Yep. It's rubber.

[Bibs]

15 hours ago, John z said:

Pay shipping and it's yours. 

 Very kind gesture

 

 

[MattyB]

On 28/05/2019 at 20:32, John z said:

Pay shipping and it's yours. 

 

John, that's very kind but as I'm in the UK I suspect the cost of shipping is more than the cost of the part 😁 I really should put that info in my profile...

And thanks @agentdr8 for the link!

[John z]

19 hours ago, MattyB said:

John, that's very kind but as I'm in the UK I suspect the cost of shipping is more than the cost of the part 😁 I really should put that info in my profile...

And thanks @agentdr8 for the link!

Just make sure you contact deroure before ordering. The PN for the S and NA is showing the same. The hose is different. 

[MattyB]

On 24/05/2019 at 22:57, agentdr8 said:

Ventilation hose.  #18

But you can just replace it with any vacuum hose of similar inner diameter. The foam cover is likely for abrasion and maybe heat protection. 

 

 

Sorry, just to clear this up, but don't I need part number 17? Part number A132E6302S ? Shape looks wrong for 18, double kink?

I'm assuming Bank2 is the one at the back, near the bulkhead? And the one I need the hose for?

[agentdr8]

18 hours ago, MattyB said:

Sorry, just to clear this up, but don't I need part number 17? Part number A132E6302S ? Shape looks wrong for 18, double kink?

I'm assuming Bank2 is the one at the back, near the bulkhead? And the one I need the hose for?

Yes, my bad. I was looking at the diagram from the wrong perspective. 17 is the one from the bank closest to the bulkhead.