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View Full Version : is this a common coolant leak on rb25?

ANVIL
09-23-2014, 07:15 PM
http://img.photobucket.com/albums/v708/ANV1L/Mobile%20Uploads/20140923_153719.jpg (http://smg.photobucket.com/user/ANV1L/media/Mobile%20Uploads/20140923_153719.jpg.html)
Above water pump almost where the intake manifold / head / block meet.

Any guesses on what it is and how to fix it?

Ive been chasing an annoying coolant problem, details in this thread:

http://forums.nicoclub.com/high-operating-coolant-temps-s13-long-need-input-t592346.html

Im wondering if this may have some kind of effect on my problem. I haven't gotten around to installing the coolant breather tank yet mainly because im unsure where to put the hose thats supposed to go to a bleeder valve because freddy doesnt have a bleeder valve and im not confident on drilling to make one myself....

Any help or input would be appreciated!
ANVIL
09-24-2014, 11:30 AM
I believe I found the culprit. After driving home from work a block away coolant temp shot up and steam coming from the engine bay. Pop the hood to find this

http://img.photobucket.com/albums/v708/ANV1L/Mobile%20Uploads/20140923_205229_1.jpg (http://smg.photobucket.com/user/ANV1L/media/Mobile%20Uploads/20140923_205229_1.jpg.html)

Inlet on my isis manifold popped off! Im hoping it was a small leak and led to that and nothing else....

So how do I get this pipe to stay in?!? Obviously the sealant I used didn't work out...
seagrasser
09-24-2014, 12:31 PM
See here for some options. JB weld seems to work. Got to prep and clean the surfaces and be patient while it cures.

http://zilvia.net/f/showthread.php?t=302069
seagrasser
09-24-2014, 12:33 PM
Oh, and kudos on swapping an RB in Anc. Would love to see it sometime.
ANVIL
09-24-2014, 03:41 PM
Oh, and kudos on swapping an RB in Anc. Would love to see it sometime.

Thanks ill check the link out

Been swapped since 06 :2f2f:

U up here ?
seagrasser
09-24-2014, 03:51 PM
Yep, live near Sandlake.
ANVIL
09-24-2014, 07:03 PM
You have an s14 rb up here too? Haha im not too far. Live off of Klatt
seagrasser
09-24-2014, 08:39 PM
Unfortunately mine is still in Seattle. Wasn't practical to move it up last year.
ANVIL
09-25-2014, 07:05 AM
Ic. You have plans to bring it up?

After reading I think im going to try jb welding it like a lot the people did. Thanks again for the link
seagrasser
09-25-2014, 02:39 PM
Don't know yet. Sure do miss it though.

Glad to help. Will PM you for more info on your build
ANVIL
09-25-2014, 10:02 PM
Just finished up JB welding it back on after cleaning it up real good. Just gotta wait for it to dry and cure and I should be back on the road tomorrow night. I even took a mirror and actually confirmed a dried coolant trail from the underside of the inlet to the top of the waterpump area so this was definitely the leak.

Im just hoping fixing this fixes my orginal problem with coolant temps....