Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN









Search Auto Parts

Rusty water in engine


  Email This Post



Belewsboy
New User

May 30, 2013, 3:25 PM

Post #1 of 7 (1446 views)
Rusty water in engine Sign In

1990 Silverado Z71
The water in my engine and radiator are really really rusty. My mechanic says there is not much he can do because the engine flush that is now available does not do the job it used to as the EPA stopped the manufacturing of a Prestone product (crystals). This truck is in great condition with 130,000 miles, but everything is on the verge of stopping up. The water pump is about to fail and I hate to replace it without removing the sludge. Does anyone know of a product or group of chemicals which will adequately remove the sludge?

Thanx


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 30, 2013, 3:36 PM

Post #2 of 7 (1444 views)
Re: Rusty water in engine Sign In

That problem is going to be a bigger issue than you are expecting. Rust is like a cancer that destroys everything in the cooling system Once you find a way to remove the sludge, you may find out the sludge was the only thing holding back numerous leaks. One thing that will work but you have to be very, very careful using it is Muriatic acid. You not only have to be very careful handling it, but you have to get the system rinsed out thoroughly as it is corrosive as any strong flush would be.

You may find yourself replacing the radiator, heater core and possibly a few freeze plugs, depending how bad the issue is now.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Belewsboy
New User

May 30, 2013, 4:28 PM

Post #3 of 7 (1430 views)
Re: Rusty water in engine Sign In

The issue is pretty bad, now. I assume the best thing to do is to replace the radiator, as it probably is holding a lot of sludge, and flush the engine with clean running water until it runs clean, then treat with acid? Any idea on the amount of acid and how long it should run in the engine? I appreciate the info. I really don't want to junk this truck.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 30, 2013, 4:38 PM

Post #4 of 7 (1423 views)
Re: Rusty water in engine Sign In

You can do that but you need to run the water through it again after the acid to get it all out. It may even have to be done a couple times.

You can experiment with the quantity of acid. I would probably start with about a pint.

I might even do the flushing before changing the radiator to prevent all that stuff from plugging up the new radiator. The best way would be to somehow join the radiator hoses together, leaving the radiator out of the loop for that step.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



MarineGrunt
Enthusiast
MarineGrunt profile image

May 30, 2013, 6:05 PM

Post #5 of 7 (1398 views)
Re: Rusty water in engine Sign In


Quote
The best way would be to somehow join the radiator hoses together, leaving the radiator out of the loop for that step.



If you have trouble finding a coupler that will work at a hardware store try a swimming pool supply store. Our heater took a crap once, and while I was waiting for the new one I ordered off the net, I had to add a coupler to some hoses. I bet that coupler would be pretty close to the size you would need. Actually, come to think of it I think I used a connection that only had a barb on one end and threads on the other. I ended using a pvc shutoff I had laying around and one of the threaded barbs at each end. If that doesn't work you may be able to try different sizes of regular pvc and some hose clamps. If you aren't having any luck there be creative and find some a very large size of heat shrink to join them or just have your old lady hold them together. Crazy lol


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 30, 2013, 6:09 PM

Post #6 of 7 (1394 views)
Re: Rusty water in engine Sign In

You should neutralize the acid with baking soda. It is also a great idea to keep a box of baking soda near by if you spill that stuff on yourself. Muratic acid is some nasty stuff. I use it in the pool and the fumes alone can burn your lungs. Make sure you wear full safety eye goggles. You sure don't want that stuff in your eyes.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 30, 2013, 6:11 PM

Post #7 of 7 (1391 views)
Re: Rusty water in engine Sign In

I forgot to mention it before but you should remove the thermostat before flushing.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







  Email This Post
 
 


Feed Button




Search for (options) Privacy Sitemap