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Oil pan gasket issues
https://www.slantsix.org/forum/viewtopic.php?t=55657		 Page 1 of 1
Author:  Beitie [ Sat Jun 21, 2014 10:21 am ]
Post subject:  Oil pan gasket issues
Hey everyone, my re build is going extremely slow sadly. I'm having a hard time finding time and motivation, but I am making progress.

My recent task of putting the oil pan back on has me asking a few questions. First off, along the back of the pan, the part that covers the rear main seal, there are four holes for the rubber feeler things to pop through. What size are these holes suppose to be? Mine are 7/32" on the right side(passenger) and 5/32" on the left side (driver). My FelPro gasket set has the same nub size and both are too big to fit through the holes.

I did, however, read a few topics in these forums here, and I came across Real Gaskets (brand) silicone gaskets, so I did order a set from them. Maybe their gasket will fit properly? I'm still curious if anyone else knows what size the holes are in their own oil pan.

Here are some pictures to show what I mean.
Passenger side:
Image

Driver side:
Image

Yes, I will be cleaning the paint out of the holes. I do see that could be part of the issue.

Second, how do I know when the oil pick up tube is in the correct location?
Author:  Greg Ondayko [ Sat Jun 21, 2014 10:46 am ]
Post subject: 
what model year is your pan?


those nubs were changed after 60-61... and I I have some service bulletins at home that I can post about how to modify your pan to fit modern gaskets..

the real gaskets set will give you the same problems unless you do the modification.


I am 8 hours from home but will be back tomorrow nite.. it will try to post for you then.

Greg
Author:  Beitie [ Sat Jun 21, 2014 12:46 pm ]
Post subject: 
The pan is off a 1970 Dodge Dart. As far as I know, it's the original pan.
Author:  Greg Ondayko [ Mon Jun 23, 2014 5:45 am ]
Post subject: 
Quote:
The pan is off a 1970 Dodge Dart. As far as I know, it's the original pan.

Then Most gasket sets should work on a 1970 pan.


The nubs will need pulled through with some needle nose pliers Before Getting the Pan down on the engine. They are a tight Fit.


Here is a picture of the Information I was referring to..
Image
Hopefully that will be somewhat helpful.


Greg
Author:  Beitie [ Mon Jun 23, 2014 10:06 pm ]
Post subject: 
Thanks for the reply. Maybe I just got a wonky gasket from FelPro? Also, it is a little odd that I have a 7/32" in one of the spots where the picture you sent says 5/32". We'll see how it goes. I hope to get this figured out.
Author:  Beitie [ Fri Jun 27, 2014 6:53 am ]
Post subject: 
Ah! I now see the little note on the right hand side:
Quote:
Some early production oil pans have a 5/32" hole on the right end prong. Current gaskets require a 7/32" hole. Where necessary, enlarge right end hole to 7/32.
That has to be what my issue is. Do you know when that service bulletin is from? I'm just curious since it refers to my issue as an early production oil pan. What defines early production?
Author:  Greg Ondayko [ Fri Jun 27, 2014 8:16 am ]
Post subject: 
not quite sure on that.. I would say 60-61... but I am not totally sure.. I just stapled it to my garage for reference.

Greg
Author:  hyper_pak [ Fri Jun 27, 2014 7:10 pm ]
Post subject:  oil pan
you have to pull those rubber tangs through and they are tight. I have only had to drill one pan in 40+ years, I first rebuild on a 62 Valiant that had a 60 slant engine in it. On the pickup do you have a FSM? It shows the pick up info. I like to put it in with thread sealer and look through the front cover and oil plug hole and see how well it fits to the pan bottom. It needs to be parallel and not touching so it gets oil and doesn't rattle.
Author:  63Valiant [ Sat Jun 28, 2014 6:33 am ]
Post subject:  Re: oil pan
Quote:
you have to pull those rubber tangs through and they are tight. I have only had to drill one pan in 40+ years, I first rebuild on a 62 Valiant that had a 60 slant engine in it. On the pickup do you have a FSM? It shows the pick up info. I like to put it in with thread sealer and look through the front cover and oil plug hole and see how well it fits to the pan bottom. It needs to be parallel and not touching so it gets oil and doesn't rattle.
X3, they are that way by design. That's why they have the smaller size before the larger, you grab onto them and pull, the stretching effect makes the tabs smaller and they fall right into the hole. When you release them they go back to normal size locking the seal in place.
Author:  Beitie [ Sat Jun 28, 2014 4:05 pm ]
Post subject: 
Just an update. I got the gasket set from Real Gaskets Tennessee, and the set they sent me had a proper fitting rear seal. No drilling was needed. The FelPro set I had, the nubs were the same size, and I would have needed to drill that 5/32" hole out to a 7/32". I'm glad this set did not require a drill. I know the holes are a bit snug, but as stated in my first post, the gasket had two large nubs, the same size, and my pan had two different sized holes.

I also found the proper procedure in my service manual for the pick up tube, but I haven't tired it yet. While I was working on all this, I realized I hadn't yet painted my oil pan bolts and I didn't have my metal straight edge there :( Oh the joys of having a garage that is 20 miles away from home.
Author:  SlantSixDan [ Sat Jun 28, 2014 6:15 pm ]
Post subject: 
Quote:
not quite sure on that.. I would say 60-61
Pentastar was not adopted as Chrysler Corporation logo until September 1962, and the typeface used in that sheet was not used that early.
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