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Inlet to oil cooler problem.

D

dmanars

Member
I went to start my engine yesterday. Aq130c. I had the outdrive submersed in water. When i started it water started to gush out from the inlet of the oil cooler. When I turned the engine off it looked like the piping came loose. Now there is a small gap between the cooler and the pipe and I dont know how to reconnect it. I dont see anything in the manual about connecting and disconnecting. Well nothing that would help. How and what do I need to do to reconnect the pipe to the oil cooler?
 
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Those connections can be a bit of a pain in the rear, That particular one is best reseated by removing the exhaust manifold and getting to it from there. I'd also be wondering why it popped out. First guess might be that there was freeze damage but that doesn't seem likely in San Antonio. What does the water outlet connection of the oil cooler look like? Has the oil cooler taken a big knock and been tilted from horizontal?

Look at your diagram again and you'll see that part 26 and 43 are the clamp and screw that anchor the line to the throttle cable bracket. When you're putting things back together be sure to get that clamp put back on. You'll want to do several dry fits before finally applying the red Permatex RTV to the new (square) o-rings.

As long as yu've got the exhaust manifold off, might also be a good idea to dissasemble the oil cooler itself to inspect and install new o-rings. Sierra sells these as a kit or you can buy them individually. Don't forget to get new seals for everything you take apart. Again, it's probably cheaper to buy a kit than buy the seals seperately.

Let us know how it goes. I'm in the middle of doing some work on a 130C myself and am at about that stage. For me, it was the rear connection that was pushed out.
 
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I think some told me it could be freeze damage also. We did have a freeze here about a month ago. I have already purchased the water cooler gaskets because I wanted to change them out, and I went ahead and ordered the gasket for the inlet to the oil cooler. I already know Im going to have to change it before I put it back together. Im really not looking forward in removing the exhaust manifold. I just finished replacing the exhaust maifold exhaust pipe. If I dont buy a new pipe am I just going to have to bend the pipe back and then apply Permatex RTV? And about the permatex rtv can I just get that at the autoparts store? Or do I need to order it from somewhere?
 
You can get the Permatex red, high temp RTV, at most auto stores. Instead of removing the manifold, you can remove the pipe from the water pump at the front but you may need to remove the alternator. It's a process of bending and then fitting to make sure it's square and far enough down into the socket. Bend and fit, bend and fit, repeat as necessary. Be careful about those square cut o-rings. You want them to fit properly in the socket and not roll on you. Put a little RTV on the outsside of the o-ring before you put it in and then fill in any gaps on the top. A small screwdrive or something to smooth it out helps to make it not look so messy.

I believe the RTV needs 24 hrs to cure so it's best to allow that to happen before you crank it up. When the seals work they're a non-problem but if you somehow yank on one of those water pipes and bend it, it'll drive you up a wall getting them bent back exactly the way they were meant to be.

Take your time and be patient. There's nothing worse than spending all that time working on it just to have the *@#! thing start leaking again.
 
"Take your time and be patient. There's nothing worse than spending all that time working on it just to have the *@#! thing start leaking again. "

Oh man I hear that. I think Im just going to buy the pipe used and try it that way. I have the patients for it just not the time. By the way thanks Joe_merchant for the info and help. I apperciate your time. When i didnt get a response quickly, I thought it was going to be a do-it-by yourself job.
 
I'd really try to get it put back together with the existing tube than try it with another one that may or may not be bent up. You have to take things apart anyway. Hope I didn't scare you off about trying to bend the old one back into place. It's one of those things that are "doable", just need to think of the angles you're changing when you make the bends. It's one of the prices you pay for having an older boat but it's also one of the rewards. And just think, you can burn premium in your boat all day long and only be paying a fraction of the cost of the people with the big gas hogs!
 
Actually this was an easy fix. I ended up taking a crowbar and used it as a lever to bend it back into place. I did replace all gaskets and cleaned parts. The actual fix took 20 sec. Everything looks fine and its working great.
 
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