I'm trying to get a handle on the in service failure rate for rubber covered (not stainless steel braided) high temperature hose and standard crimp connectors for same in engine oil cooler applications.

Feel free to detail known failure conditions, if you experienced them.

 

do it right or don't do it at all, one stupid clamp could break and kill your motor, its just not worth it i find

a trade off between your dollar hose clamp and your motor? geez, that's a tough one

 

Bigmoose;

As long as you are using quality hose and fittings that are designed for the applied fluids, there is no reason for the hose to fail for the life of the car.

I've done a fair amount of re-plumbing of cars over the years and any problems normally show up during the initial start up and are due to a faulty mounting of the hose on the fitting. Once resolved, I've never had problems show up latter.

Of course, this assumes that the hose is not rubbing on something.

If the reason for this post is due to your being conserned with having a hose let go and trash an engine due to lack of oil, the answer is to install an oil pressure switch that shuts down the engine at low oil pressure. If you do this, you need some form of by-pass switch so that you can start the car (no oil pressure at initial start-up and the pressure switch wants to shut down the engine).

Wes Vann

 

In answer to:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrettyLude &raquo;</TD></TR><TR><TD CLASS="quote"> ... snip geez, that's a tough one</TD></TR></TABLE>

If you know my pedigree, you know this is not a trivial request based on use of low quality hose or fastners... I/we are seeing some "cold flow" of the interlayers of the appropriate specification non skived hose with age and temperature cycling, resulting in weeping at CRIMPED high quality barbed connections.

I wanted to see how prevelant this was in the general community...

I am starting to think I should know better than ask here...

 

i wasn't trying to be an ***, but i have seen too many fail due to the use of just regular hose and clamps

 

everytime i have used crimped fittings, they end up leaking. hell, i've used hose clamps on barbed fittings and they work better.

 

Bigmoose;

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bigmoose &raquo;</TD></TR><TR><TD CLASS="quote">I am starting to think I should know better than ask here...</TD></TR></TABLE>

Although I don't think it was directed toward me, I've got to say that your comment was a bit un-called for. It's rather insulting toward us individuals that post comments on this board and try to be helpful.

Wes Vann

 

listen to sleepy ek, I have a flex a lite cooler and thats how it works.

Barbed fittings make it hard to pull the hose off once it's on, you almost have to cut the thing to get it off.

If you want to be safe, double clamp.

 

did someone import this thread from a real forum???


although I have no experience, free bump.

 

My 86 Corolla GT-S has an oil cooler in the front. The oil is run to it with regular rubber hose with clamps. Everything on the car is original, and the only leak is around the engine, where the hose has become rock hard. It's nothing "catastrophic" in my book, and I'll probably replace them soon enough. But considering these are 20 year old rubber hoses, I'd say they're doing pretty damn good.

Heck, it might not be the hoses themselves, it might be my power steering, which I know leaks from the lines around there. It might be from an oil seal on the motor. It's like a British car: if it's not leaking, something is empty.

 

I just installed an oil cooler on mine, my motor will be done in a few days and now you guys have me scared of mine leaking or failing. I just used regular 3/8" rubber fuel hose, a sandwich adapter, and a $50 oil cooler from summit. I have hose clamped, barbed fitting coming off the sandich adapter, but at the oil cooler its just straight pipe that the hose slipped over. I used some high temp glue and slid the hoses on there as far as possible, I guess I'll find out soon enough if it works.

 

Shitty, I just cranked it up and it ran for like 3 seconds and then cut off. It does that every time I crank it. But another thing-- of course oil comes pouring out at the sandwich adapter, I hope I just didnt tighten it enough, but I made sure I did. I didnt expect it to work the first time anyway