Hydroboost -What is this fitting?
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Cruising
Joined: Dec 2005
Posts: 11
Likes: 0
From: Mineville Nova Scotia
On the older hydro boost systems they used an inverted fitting and on the newer style they used the metric fitting with o-rings. I think the part you are looking at is a seat for the inverted style fitting. These were a press fit into the housing of the unit.
Last edited by CM77; Apr 29, 2008 at 03:48 AM. Reason: mis spelling
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Some close answers, it's just the insert into the port in the back of the power steering pump, the high pressure port, that the tip of the hose end seals against. It's there for the later C3s and C4s that have a different hose end than the early C3s.
