Leaky drain plug in Moroso oil pan

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Old Nov 4, 2008 | 06:16 AM
  #1  
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Leaky drain plug in Moroso oil pan

I wanted to run something by everyone. I purchased the 7 quart Moroso oil pan for my 455. Unfotunately, the drain plug is leaking. I already returned one Moroso oil pan for this problem. Is this a common problem for aftermarket oil pans?

I called Moroso and they said there is no torque spec for the drain plug. The instructions simply say finger tight an additional 1/4 turn. Is this a good guideline? I am 100% certain I haven't stripped out the drain plug threads or overtightened it.

I am thinking about returning this one as well and buying the 7 quart Milodon pan. Are these better quality than the Moroso pans? The only problem with the Milodon pan is that it is gold iridited. Can these be painted?

I am pretty certain I shouldn't put teflon tape on the drain plug. Any ideas? I put the nylon washer on it this morning and tightened it. I will let everyone know if it leaks. Keep your fingers crossed.
Old Nov 4, 2008 | 06:29 AM
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I bought the 7 Quart Mildon Pan used on evil bay for $25.00 and roughed it up with light body sand paper. Painted with a good base primer, Then painted it black 6 months ago. No problem and it looks great. I also got the windage tray and high speed oil pump with the pan.

Good luck
Old Nov 4, 2008 | 03:37 PM
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I don't see any reason why you couldn't use teflon tape on the pan. It will hold up to the heat. I don't believe you will have problems with a chemical reaction. the thing is, The pan, assuming that it is the same as a stock pan is tapped using a straight thread, like a bolts, as opposed to a nipple or pipe style thread. The sealing surface should be essentially under the head of the bolt, not the threads. are you missing a washer or O ring type seal? I would be more inclined to look there first.
Old Nov 4, 2008 | 03:42 PM
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Originally Posted by csstrux
I don't see any reason why you couldn't use teflon tape on the pan. It will hold up to the heat. I don't believe you will have problems with a chemical reaction. the thing is, The pan, assuming that it is the same as a stock pan is tapped using a straight thread, like a bolts, as opposed to a nipple or pipe style thread. The sealing surface should be essentially under the head of the bolt, not the threads. are you missing a washer or O ring type seal? I would be more inclined to look there first.
I agree. Teflon tape should not be needed, as the treads are straight cut. There should be either an aluminum or copper crush washer or an o-ring or rubber coated washer of some type under the head of the drain plug bolt.
Old Nov 4, 2008 | 07:40 PM
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Well, I checked the pan this afternoon after work and it had leaked some. There is a washer between the drain plug bolt and the pan. The pan came with a nylon washer; however, I received a box of replacement copper washers when the first oil pan I had leaked out of the drain plug. The pan I currently have leaks with the nylon washer AND the copper washer (just like the first one I had).

I guess I will return this one and order the Milodon pan. I would have thought that the quality would be better from Moroso. I have always got top notch stuff before when ordering from Summit.
Old Nov 4, 2008 | 10:32 PM
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You might want to try, for the time being going to the local parts store and see if you can get some uncut gasket material, and cutting a washer out of the stuff. Just as a temp fix. You never know it might hold up as a permanent one. Just now thought of it.
Old Nov 5, 2008 | 12:13 AM
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Another option would be some of that Blue RTV Silicone sealant. Just enough to wet the contact surface of the nylon washer. Like the guys above said it shouldn't need it on the threads. An appropriately thin coat shouldn't hinder removal next time either. Though you may wait for it to solidify a bit before you fill it back up. Worked for my truck ('72 Dodge) when its drain plug was leaking.

I don't understand why drain plugs always come with the hard nylon washers or no washer at all... it never works. Would it really kill em to include a decent black gasket seal?
Old Nov 5, 2008 | 04:58 AM
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Exchange it for another brand, or you can wait for strike three.
Old Nov 5, 2008 | 05:51 AM
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The good thing is that the engine is still on the stand (has been for awhile).

I am going to call Moroso today and see if they have any ideas. When I checked the pan this morning it had leaked some more. I also noticed that there was some red nastiness around the front and back of the pan where it meets the timing chain cover and rear main cap. I wonder if it was a previously used pan that had been put on an engine with red RTV? There were also two numbers etched inside of the pan. One of them was scratched out though...
Old Nov 5, 2008 | 07:08 AM
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A Monty Python quote "run away, run away"
Old Nov 5, 2008 | 07:19 AM
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I bet if you got a good o-ring and put on the plug that it would stop your leak. I have used waxed twine wrapped around the drain plug before which stopped the leak. Not very professional but it worked.
Old Nov 5, 2008 | 09:55 AM
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I bet if you got a good o-ring
The o-rings I have used are either the one that comes in the box with the oil pan or the Moroso replacement o-rings. I thought that I could go to the hardware store and buy a rubber grommet to use as an o-ring. The rubber would compress more than copper or nylon and perhaps seal better. One would think that spending over $200 on an oil pan would preclude problems like this.
Old Nov 5, 2008 | 11:46 AM
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I'd consider a fiber washer like Toyota's use . Nylon sucks !
Old Nov 5, 2008 | 02:02 PM
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I talked to Summit today and they are going to send me a Milodon pan. I talked to the Moroso guy and he wasn't too helpful. My advice... never buy Moroso products.
Old Nov 5, 2008 | 02:57 PM
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Good call.

Easier then a temp fix. After all Summitt, is takin responsibilty for the issue and thats what you needed to have happen.

Good job
Old Nov 5, 2008 | 03:00 PM
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I have a Moroso pan on my 350 with no problems.
Old Nov 5, 2008 | 06:16 PM
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Just as a side note. I discovered Speedway recently. They have many of the same items that you can find in Jegs or Summit but they deliver out of Nebraska which is almost next day deliver for me in K.C. Maybe second day for OK.
Old Nov 6, 2008 | 05:57 AM
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I looked at Speedway and they didn't seem to have very many parts. Maybe I just wasn't using their search engine properly.
Old Nov 7, 2008 | 06:24 AM
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Sir, I believe it was me that you spoke with the other day regarding this issue that you had with your Moroso pan. I am disappointed to read here that you feel I wasn't very helpful even though I believe I was completely honest and straight forward with you when I explained to you what I thought would fix your problem. I am very sorry that you are not currently satisfied with your product from us and if there is something you feel I could have done that I did not then by all means I would welcome another phone call, an email or even a private message on this forum. I have included my contact information below for your convenience.


Jim Bianca
Technical Service
Moroso Performance Products
Phone: 203-453-6571 ext. 302
Fax: 203-458-1312
Email: JimB@moroso.com
Old Nov 7, 2008 | 06:52 AM
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Hmmmm, interesting.
Old Nov 7, 2008 | 09:31 AM
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Originally Posted by Oldsguy
Hmmmm, interesting.
I'm not surprised.

Norm
Old Nov 7, 2008 | 09:41 AM
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Welcome Jim, it's good to have an aftermarket tech rep as a member.

Out of curiosity what would be the suggested fix, or, what do you think would be the cause?
Old Nov 7, 2008 | 09:59 AM
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Jim, thanks for being professional. It says alot about a company if one of their reps is willing to search the internet for a gearhead forum about a customer's complaint.

Ultimately, I retruned the Moroso pan and oil pan pick-up. I am now waiting for Summit to send me a Milodon pan and pick-up.
Old Nov 7, 2008 | 10:20 AM
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Well, I'm sorry it ended up working out that way for you but in the future please don't hesitate to contact me here as I'd be happy to help out in any way that I can.
Old Nov 7, 2008 | 10:39 AM
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Dan asked me to clear something up here..

I had emailed a link to Moroso to give them a heads up. I have Moroso parts on my engine and haven't had any problems with them, the statement made in one of the posts by Olds64 to stay away from their products is what prompted me to initiate contact. Jim responded which is commendable.

Tom
Old Nov 7, 2008 | 10:55 AM
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Thanks Tom. Appreciate that. I do agree that taking time to even reply and state his support regardless of the outcome is very commendable.
Old Nov 7, 2008 | 11:29 AM
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Originally Posted by Jokers69
........ what would be the suggested fix, or, what do you think would be the cause?
I am also curious.

Norm
Old Nov 7, 2008 | 12:17 PM
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the statement made in one of the posts by Olds64 to stay away from their products is what prompted me to initiate contact
I am glad Jim commented; however, I won't recommend Moroso products in the future. Especially if I get the Milodon pan and it doesn't leak (which is what I expect).
Old Nov 7, 2008 | 12:23 PM
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Originally Posted by Jimmy@MCE
Well, I'm sorry it ended up working out that way for you but in the future please don't hesitate to contact me here as I'd be happy to help out in any way that I can.
Thanks,

I like your style.

Shows alot about a guy.

Got any bullet proof oil pans for a rig like this, It keeps getting caught up on stumps.
Attached Images
File Type: jpg
vistacrusier4x4.jpg (35.1 KB, 34 views)

Last edited by Jamesbo; Nov 7, 2008 at 12:28 PM.
Old Nov 8, 2008 | 07:05 AM
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Originally Posted by Jamesbo
Got any bullet proof oil pans for a rig like this, It keeps getting caught up on stumps.
Skidplate.
Old Nov 8, 2008 | 01:33 PM
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Originally Posted by Oldsguy
Skidplate.
Right, I'll put that in the "parts wanted section"

WANTED-skidplate for 69 4X4 Vista Cruiser w/ 455

I'll give you the second one I find
Old Nov 8, 2008 | 02:13 PM
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I figure you could fabricate one. I have never been closer to a 4X4 than a couple of feet while waiting at the stoplight. So, really I don't know what I am talking about but seriously, couldn't one fabricate a skidplate or modify a generic one?
Old Nov 8, 2008 | 02:27 PM
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Originally Posted by Oldsguy
I figure you could fabricate one. I have never been closer to a 4X4 than a couple of feet while waiting at the stoplight. So, really I don't know what I am talking about but seriously, couldn't one fabricate a skidplate or modify a generic one?
Oh I'm sure you could but first we gotta get Joe to help us build one of these with Toronado FWD parts. I beleive it's a "A" or "B" body some how merged with a "E" platfrom FWD something or other. Way to complex for this guy. But, It's fasinating

With a few thousand dollars and a little imagination, you can do a lot of things.

p.s. I think I have once again veered off topic, sorry

Last edited by Jamesbo; Nov 8, 2008 at 03:07 PM.
Old Nov 9, 2008 | 07:31 AM
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Moroso, Milodon, and whomever else who sells these pans usually does a 2" drop on a stock pan.
That means that they section the pan, and insert a 2" chunk of flat stock to drop the sump. Then they reuse the stock drainplug.

They have no need to re-invent the wheel.

This thread only leads me to these causes for the leak.....
A: overtightening causing a crack in the pan from the threads outwards...
B: missing, or overtightened seal (causing the seal to crack, or break)
C: gouge on sealing surface...

It is nice to see the vendor go out of his way to try to address the problem.
Old Nov 10, 2008 | 05:37 AM
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It is nice to see the vendor go out of his way to try to address the problem.
I agree. I am very happy with the service I have received from Summit. It isn't their fault that the Moroso pans leaked.
Old Nov 10, 2008 | 06:53 AM
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In the olden days, a soft copper washer was always used and brass insterts with enough threads were installed in all oil pans. In the new pans they do not use the brass inserts anymore. I always add a soft copper washer, hand tighen, plus 1/4 turn or so. Do not let the cheapo oil change places do your oil changes. they use rattle wrenches and over tighten and strip out drain plugs all of the time causing engine failure. Just try to collect money from those guys.
Old Nov 10, 2008 | 07:20 AM
  #37  
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I'm curious Jamesbo; is this actually your vehicle? The reason I ask is that I was displeased when I once saw a photo of a 'big-footed' 68 Cutlass convertible, but when I see this high-riding Vista Cruiser, I kinda like the look.
Old Nov 10, 2008 | 08:07 AM
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No it's not. I lifted it off a thread on this forum that I can't find at the moment. But I believe it was Joe discussing how to build one with some Toronado parts

Here's mine on another thread

https://classicoldsmobile.com/forums...-cruisers.html
Old Nov 10, 2008 | 08:19 AM
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Keith

Here's the thread about AWD Vistas

I finally found it.

https://classicoldsmobile.com/forums...-cruisers.html

Last edited by Jamesbo; Nov 10, 2008 at 12:15 PM.
Old Nov 10, 2008 | 11:47 AM
  #40  
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Heck, it was just a Photoshop fake. Oh well, still a cool concept (I'd still go for a bit of a lift). Btw, your VC looks great.

Last edited by KeithA0000; Nov 10, 2008 at 11:48 AM. Reason: bad spelling



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