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Water pump nuts rounded.

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Old 04-14-17, 05:55 AM
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Stingroo
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Default Water pump nuts rounded.

So, neat. Doing my timing belt/water pump and somebody rounded off two of the nuts on the pulley. Somebody else (well, me) rounded off a third. So at this point, I'm annoyed as hell with the thing.

Anybody have any ideas here? There's really not a lot of room in there to get the things off. Or anybody have the pulley? A fan clutch is cheap....
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Old 04-14-17, 07:01 AM
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Banshee365
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What pulley? Are you using 12 point or 6 point sockets?
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Old 04-14-17, 07:31 AM
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The pulley that the fan clutch bolts to. There's no room for sockets in there anyway... only wrenches:

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Old 04-14-17, 10:59 AM
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First make sure you're using closed-end wrenches. Definately NOT an open ended wrench. If you still can't get them off, Soak them in PB blaster for a while then try a sturdy set of vise grips.
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Old 04-14-17, 11:00 AM
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deanshark
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A tiny skinny pipe wrench might fit. I like the pipe wrench better then needle nose vice grips b/c it tightens onto the bolt while you put force on it, and they have better ridges to grab the bolt head. Buy new bolts.
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Old 04-14-17, 11:04 AM
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^ those are nuts BTW, he shouldn't need new studs.
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Old 04-14-17, 12:38 PM
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Oh, those. Ugh. I have personally never had that happen even with 12-point box end wrenches. I'm afraid someone, and maybe you, used the open end of a wrench on those nuts. Unless you are using a Snap-On Flank Drive Plus wrench, Wright-grip, or the like you can't use the open end. If they are rounded try the box end of a quality wrench. If that doesn't work you'll be stuck using vise-grips, and quality vise-grips at that. You'll have to bite hard into the nuts and I would tap the handle with a hammer to give an impacting effect. The new nuts are p/n 90029-07010, although I have no clue what year your car is (since you didn't say) so I looked up a random year as they're probably the same.
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Old 04-14-17, 01:08 PM
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Yeah, I'll give it a shot. Crappy part is there's really no way to hammer a socket onto them with the stupid fan clutch in the way. Rats.

My car is a '95, by the way.

These aren't reverse thread, are they?
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Old 04-14-17, 01:12 PM
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I don't remember exactly but looking at the visible thread on that top-most nut it looks like a standard thread.
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Old 04-14-17, 01:54 PM
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Originally Posted by djamps View Post
First make sure you're using closed-end wrenches. Definately NOT an open ended wrench. If you still can't get them off, Soak them in PB blaster for a while then try a sturdy set of vise grips.
+1. Long ago I had a similar tight spot trying to remove a fan assembly. On parts that haven't been removed in ever, a thread penetrant is used first and let to soak in. I've been fortunate to have not rounded a fastener head since beginning that practice. Fasteners that are often undersized some wrenches and sockets don't fit them well so slippage is an issue.
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Old 04-14-17, 02:10 PM
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They are NOT reverse thread.
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Old 04-14-17, 02:49 PM
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And if some poor mechanic was doing that for dirt cheap, he'd have to eat the time on those.
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Old 04-14-17, 03:39 PM
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Originally Posted by dicer View Post
And if some poor mechanic was doing that for dirt cheap, he'd have to eat the time on those.
Worse I am that poor mechanic.

It's my car. LOL

Damn it all.
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Old 04-14-17, 06:15 PM
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Banshee365
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Try using the box end of a combination wrench. You have have to pry the wrench on to the nut with them being partially rounded, but that only means it will be on the nuts tighter.

So we're all clear, did you attempt to remove the nuts with the open end?
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Old 04-14-17, 06:24 PM
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Vise grips
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