Racer
Retroford water rail query
Just recently fitted a water rail from Retroford on my Zetec, the heater hose outlet has an m8 threaded hole, obviously threaded to plug if not running heater, however, if you are is the 8mm hole big enough for sufficient flow or do you drill it out?? seems small to me???
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Mechanic
Re: Retroford water rail query
Didn't drill mine and the heater is nice and hot.
The Following User Says Thank You to davemk1 For This Useful Post:
Retroford water rail query
I thought same thing but didn't in the end and my heater works very well 😊
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The Following User Says Thank You to 123-lorrydriver For This Useful Post:
World Champion
Re: Retroford water rail query
i think its designed to limit flow
The Following User Says Thank You to alladdin For This Useful Post:
Racer
Re: Retroford water rail query
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