Radiator Shop Recommendations?

[bobk]

The copper raw water pipe leaving the heat exchanger on the starboard 6V92TA has perforated from corrosion. Can any one recommend a repair shop near Stuart or Port St Lucie FL that could braze it or replace a section? I'm assuming replacing the whole pipe on a 1980 engine will be problematic or very expensive.

Bobk

 

[MikeP]

One thing you might consider...

I don't know it it's the same setup as the 8V71ti HE/exhaust system but in any case it would seem to me that the pipe could be replaced with hose except for the section right at the HE which would have to connect to the hose. Or a new HE fitting could be fabricated from SS (or whatever) to accept the hose. On our 8V71, the pipe comes out of the HE and then connects to hose after making a 90 degree turn to the rear. There's no real reason that I can see that it couldn't be all hose.

 

[captddis]

Don't bother patching it as it will only spring another leak. If it is the pipe leaving the exchanger and going to the exhaust discharge, it is a Hatteras part not DD. Most of the factory pipes are available albeit $$$.
I was having one pipe go then another start to seep. I was able to get all new pipes except one. some have been discontinued.
If in fact you need discharge pipe, you can use hose and pipe fittings.
I have just done a pair of 6v92's in a Hatt this way. [ after he repaired the old pipes numerous times].

I can get you some pics if needed.

 

[Boatsb]

I have the pipes removed from the flange and machined to accept a welded flange then used hose. So far its the best solution I've heard if. You just need a machinist that knows how to tig weld.

 

[bobk]

I thought about using hose. It has a 90 degree bend and is long so would need some support. But the hose size at the HE end is different than at the back end so need some sort of reducer. I can't use a piece of the pipe as a reducer as it is that part that has pitted. With pipes, I could just bush it down.

Capddis, some pictures would be a big help. Thanks.

Bobk

 

[captddis]

I'll get pics tomorrow.

 

[captddis]

here are the pics

 

[captddis]

I used a 2"pipe ell, A 2"pipex 2" barb adapter and a 4" x 2" nipple. Use a piece of 2 1/2 non wire exhaust hose from the exchanger and 2" wire exhaust hose for the discharge.

We rebuilt these engines 8 years ago. Who says Detroits have to leak!

 

[bobk]

Many thanks Captddis, That's how I was contemplating doing it.

Your engines are sinfully clean. My starboat was rebuilt by the best guy in Baltimore in 20010 and is no where near that clean. I'm going to send the mech the picture. Come to think of it, the 671TIB's in my son's boat looked about as clean as yours.

Bobk

 

[captddis]

Thanks, but it is a friend/customers boat. The boat is pristine.

 

[captddis]

mine ain't too bad either!

 

[jim rosenthal]

Nice clean engine rooms. Are you sure they are DDs?