Turbo Coolant Feed Pipe: "slop" normal?

[Paul Greenhalgh]

I’ve bought a set of new engine hoses from Brad for my 6BTA 370, including a turbo coolant return hose. On installing this, I found some ‘slop’ or wriggle in the “water transfer tube” (CN # 3897088) this hose slips onto at the engine end. Looking at a QuickServe diagram, I can see that this tube is held in with a clamp and O-ring. The clamp nut is tight-as and there is no sign of a leak.

Can someone tell me if some slop is normal or if it should be tight please?

thanks in advance…photo attached may make question clearer.

Topic

[Steve Woodside]

Same 6BTA 250Hp?

Hello , and thanks for this forum,

Does Tony’s answer apply to my 6BTA 250HP?

I changed Turbo coolant return hoses on both engines.  The Stbd was tight but no problems.

The port hose was really tight, and even with heat and soap it took a lot of force. It Stull was only needed another 1/2 inch to be perfect when the return pipe moved and exhibits this slop. 

The retainer bolt is tight.

I am thinking of removing it and repla

replacing the O ring as well.

Otherwise, do you think I am good to go as well?

Thanks in advance.

Steve

[Tony Athens]

Absolutely 100% designed that way.. The transfer tube” had a sloppy machined fit inside the engines casting and seals with an “O” ring .. This allow alignment and flexibility in the install…..Or, just call it like this–That tube has lots of “wiggle room” as a built-in feature , if that helps……………………………..Sleep tight as you are good to go..

Tony

[Paul Greenhalgh]

Thanks Bill. I’ve benefitted over the years from your multi-engine experiences. Your pain has at least helped many others!

[Bill Desmarais]

I now own my 5th 6BTA 370.

As I recall there is “play”/”slop” in the tube you refer to with the o-ring.

[Author]

Replies