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COOLANT LEAK FROM OIL DRAIN PLUG!

 
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Old 06-17-2015, 02:32 AM
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Icon9 COOLANT LEAK FROM OIL DRAIN PLUG!

I recently did a head gasket job on my 88 si and while I was driving the coolant hose going to the oil cooler busted, not knowing till I came off the freeway when the temp started to rise. I fixed the hose but then I started losing oil and my coolant started to get muddy. I have just done the head gasket again and before I put coolant in I drained the oil. Leaving the drain plug out I put coolant in and now I have coolant leaking from my oil drain plug!!! I have double check all my head bolts and don't know where else to start to look for a problem.

Any help is appreciated!
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Old 06-17-2015, 10:27 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

There's a few ways to get coolant into the crankcase. Bad head gasket, which you said you replaced. Are you sure you got that on correctly (I had to ask that)? The oil cooler could be perforated inside, allowing coolant to mix with the oil. I haven't ever heard of this happening on a 3rd gen, but I suppose it's possible. Or you could have a cracked head or block. Did you check for that when you had the head off?

Lets step back a little. Why did you replace the head gasket in the first place? Did the engine overheat at any time before you replaced the HG?
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Old 06-17-2015, 11:09 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

ALSO... Make sure you scraped all the old head gasket off. Any residual can cause a leak.
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Old 06-17-2015, 11:16 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I have the oil cooler off right now because I was hoping that it would help my head gasket issue. I may try to retorque the head today. The head way machine and checked for cracks, but unfortunately I did not check the block. I am pretty scared it could be the block

Last edited by Bellatrix; 06-17-2015 at 12:29 PM.
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Old 06-17-2015, 11:19 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I did overheat it on the freeway. I don't know how long because the temperature didn't go up till i got off and I immediately got of the road. The head was pretty warped when I took it off this time.
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Old 06-17-2015, 01:28 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

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I did overheat it on the freeway. I don't know how long because the temperature didn't go up till i got off and I immediately got of the road. The head was pretty warped when I took it off this time.
^^That's kind of what I suspected. It sounds like a cracked block to me. Not sure torquing head bolts again will help, but it's worth a try I guess. Crossing my fingers for ya.

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Old 06-17-2015, 01:36 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

In Arizona. If it is the block, I may use blue devil. Its a try.
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Old 06-17-2015, 02:12 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I've read mixed reviews about that stuff. I wouldn't use it myself. If it will plug a leak it's bound to plug things that you don't want plugged. But that's easy for me to say since I have a spare b20a sitting in my garage, ready to rebuild. It's your car, and you gotta do what you gotta do.
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Old 06-17-2015, 03:29 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

You say head was warped when you re-removed it...was it the first time?
Leads me to ask if you fastened it in a proper sequence using proper technique and proper tensions all around?
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welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
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Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
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I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

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Old 06-17-2015, 03:30 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

You say head was warped when you re-removed it...was it the first time?
Leads me to ask if you fastened it in a proper sequence using proper technique and proper tensions all around?
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 06-17-2015, 04:01 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I am checking maybe the possibility of a flipped head gasket. This is the second time I have done the gasket, but I did follow all the torque sequences and specs.

I would hate to use blue devil, but if the block has a crack you can't loose much.
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Old 06-17-2015, 05:43 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I had the gasket flipped! thanks!
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Old 06-17-2015, 08:31 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Do not reuse that head gasket. You need to use a new one because you torqued it down. It will not seal.
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Old 06-18-2015, 01:34 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

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Originally Posted by Bellatrix View Post
I had the gasket flipped! thanks!
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Originally Posted by luzer View Post
Do not reuse that head gasket. You need to use a new one because you torqued it down. It will not seal.
Oh man, hope he saw this in time...
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Old 06-18-2015, 02:20 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

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Oh man, hope he saw this in time...
Yeah, I hope so too. I replied as soon as I could.
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Old 06-18-2015, 04:41 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Someone told me to flip it and I'd be good. I guess not. I'll be at it again eventually. Thanks for the replies. Bring it on arizona 114 degree temps lol
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Old 06-18-2015, 05:22 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Well maybe you'll get lucky and it won't leak. I haven't ever tried doing that, but everything I've read says not to reuse a HG that's been torqued down. The main issue is the crush rings around each cylinder. They are a one time crush. The one thing you may have in your favor is the fact that you had it flipped. It might be different enough to seal. But only time will tell. Keep a close eye on your coolant and your oil...and your temp gauge.
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Old 06-18-2015, 05:43 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I used some of that copper sealer and honestly wasn't to happy with the results. I think i probably have to do it again for the fact that i started seeing oil in the coolant again which i flushed out before hand. Plus the exhaust was pretty smokey and smelt bad when i ran it last night
those head gaskets are expensive!
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Old 06-18-2015, 06:15 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

^^ new engine is more expensive.

Ya gotta bite the bullet and get an oem.
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 06-19-2015, 12:23 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

yeah I had i felpro one and those are pretty expensive too
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Old 06-19-2015, 02:22 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Ya oughta look into new bolts also. Now that you've tensioned them multiple times, they may have stretched enough where certain torques no longer provides ideal tensions in all location between the head & the block.
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 06-19-2015, 10:09 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Where can i get new bolts? I have only found them straight from honda :o
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Old 06-19-2015, 10:24 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

You probably don't need new head bolts. I've reused them several times. They are not torque-to-yield bolts, and are good for many torque sequences. This is assuming that you didn't over-torque any of them.

But, if you want to replace them, then you have few options. The only sources I know of are Honda or ARP. If you want to go with ARP you'll need to know the part numbers for them, since they don't make a kit for 3rd gen Preludes. There is information on this over on preludepower.com. Also keep in mind that the ARP option is actually for head studs, not bolts. So you'll also need to order the washers and nuts that are required. And they are a lot more expensive than standard Honda head bolts.
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Old 06-19-2015, 11:11 AM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

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Originally Posted by luzer View Post
You probably don't need new head bolts. I've reused them several times. They are not torque-to-yield bolts, and are good for many torque sequences. This is assuming that you didn't over-torque any of them.

But, if you want to replace them, then you have few options. The only sources I know of are Honda or ARP. If you want to go with ARP you'll need to know the part numbers for them, since they don't make a kit for 3rd gen Preludes. There is information on this over on preludepower.com. Also keep in mind that the ARP option is actually for head studs, not bolts. So you'll also need to order the washers and nuts that are required. And they are a lot more expensive than standard Honda head bolts.
^^^ I second this... Just back up what Luzer said, I also discovered through extensive reading that the Head Bolts are reuseable. And I second all the statements regarding the ARP bolts/studs as well.

Now, you don't have to use it, but ARP makes a Head Bolt lube to put on the threads and it will give you a more accurate torque than using motor oil, (or nothing at all, which I highly discourage). I have seen several different torque tests on this assembly lube, and I used it on my car when I replaced the head. Been over a year and about 18K miles and no issues.
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Old 06-19-2015, 12:15 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

I should have added that just to be safe, you might want to compare the length of your head bolts to each other. Looking to see if any of them is a little longer than the rest. If any were to stretch, it's not likely that they would all have stretched the same amount. I'm not sure how much of a difference is acceptable though. And two of the 10 head bolts are supposed to be longer than the other eight.
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Old 06-19-2015, 04:56 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Not trying to discount what you fellows are saying by any means.

They say crank bolts are 're-usable' as well. But I can't count the number of threads about the crank bolts working loose or head gaskets failing because the bolts had stretched.

John Force don't re-use head bolts...neither do I.
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead

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Old 06-19-2015, 05:40 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

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Originally Posted by bykfixer View Post
Not trying to discount what you fellows are saying by any means.

They say crank bolts are 're-usable' as well. But I can't count the number of threads about the crank bolts working loose or head gaskets failing because the bolts had stretched.

John Force don't re-use head bolts...neither do I.
It's fine, you don't have to re-use them. I'm standing firm on what I said mainly because I have done it...several times, on three different 3rd gen engines. Honda says they're re-useable. I can't speak for crank bolts because I haven't checked into those.

We're not building a top fuel funny car. 49 lb-ft isn't going to stretch these bolts. If I based what I do on what John Force does I'd do a lot of things differently.
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Old 06-19-2015, 08:11 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Appreciate the responses. I probably wont get to it again for a few weeks. I will let you know how it goes
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Old 08-19-2015, 05:15 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

Bleepin bleep bleep! I filled the radiator with water and cooling is dripping from the oil filter adapter! I am so annoyed with this thing. I am thinking a cracked block. Any other suggestions?
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Old 08-19-2015, 06:52 PM
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Re: COOLANT LEAK FROM OIL DRAIN PLUG!

You shiiirrrr it aint the oil cooling hose?
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