What size ? - MFI cold start enrichment fuel lines

[hot66]

anyone know what size the MFI cold start enrichment fuel lines are that are located on the plastics stacks ( the lines connect the small plastic T fittings) ?. Think there are 1972 onwards

[210bhp]

Internal diameter seems to be exactly a quarter of an inch.
I have one on my lawn mower Petrol feed as it seemed to be a perfect diameter so now I have a Porsche lawn mower.

Regards
Mike

[hot66]

Has to be small OD as well. Need to order some ( although knowing me I’ve probo got some tucked away in the bowls of the car somewhere as a spare)

[Lightweight_911]

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Notes from the last time I bought some of the small diameter cold start hose (for my '73 911E/S) indicate that it was 4.5mm ID/9.5mm OD & I used ~ 500mm.

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[hot66]

Thanks Andy

Separate note... any one supply the plastic injector pieces that clip into the stacks ?

[Lightweight_911]

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I don't think the original plastic ones have been available for years - the only version I've seen recently have been the brass ones.

Unfortunately they're ~ £300 a set ...

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[markm]

Thanks Andy

Separate note... any one supply the plastic injector pieces that clip into the stacks ?

James, I just bought mine from local OPC Porsche £3.48ea. Part No.999.137.005.40

[Lightweight_911]

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That's great news !

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[markm]

"Bought" my replacement fuel lines from here, albeit it was the larger one but I am pretty sure they have the small dia. one also

https://www.machine7.com/section.php?xSec=322

Even got a sale on for you.

[hot66]

Thanks Andy

Separate note... any one supply the plastic injector pieces that clip into the stacks ?

James, I just bought mine from local OPC Porsche £3.48ea. Part No.999.137.005.40

Mark, do they have the almost blocked off outlet with the pin hole 'squirter' in it ?

[markm]

James

Which Part No?

[hot66]

theyre not identified on PET .. they go between items 26 and slip into the plastic intake stacks ( 26 = fuel pipe , 27 = clamps )

consist of 2 'T piece' and 1 90 deg per intake stack. Al have a closed end with pin prick sized hole to inject fuel through

mine are ok, just one of them has is out of round

[hot66]

these are the brass ones being produced Andy is refering to

https://www.rosepassion.com/en/diagrams ... que-583857

[markm]

Give OPC a try, I think this is the part no.911.110.075.10S

Design911 have them
https://www.design911.co.uk/fu/pt856_21 ... tion-Rail/