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2/18/16 12:41pm - Original Message: '73 SB Oil Pan Side Plug Repair???'
Tooch1
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Anyone have any ideas as to why my oil pan would have a plug on the right side? Pan is original with correct drain plug in front center. However, there is this very bad looking repair (plug) on the right side. I'll try to post a photo here if I can. Any ideas/comments appreciated. Thanks. Sorry about the giant photo, but as I said previously, Im not sure why I can't post, or edit a photo on this site. I use my Ipad most of the time for photos. Also, I did try using Chrome as a browser and had made no difference. I have the same issues when I use my PC. Once again, I do appologize for my lack of computer skills posting photos here...thanks.

Oil pan pic 

(modified large image to link-aapple)



|UPDATED|2/18/2016 10:41:54 AM (AZT)|/UPDATED|


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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/18/16 9:41am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Sarge81 Lifetime Member
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WEST SENECA, NY - USA

Vette(s):
1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

Joined: 12/3/2001
Posts: 2376
Maybe the previous owner had a oil temperature sensor in that spot??? 

The plug is to high up to drain the oil completely from the pan.


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GEN III 5.7L "LS6" Engine swap
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2/18/16 12:44pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
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I agree....prolly a temp sensor installed there at some point. It's too low to be a turbo line return.

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Joel Adams
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2/18/16 2:08pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Vman73
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Gig Harbor, WA - USA

Vette(s):
1973 L82 4 Speed Coupe - Very original, well documented driver/survivor. 2016 Bend Regional NCRS Top Flight.

Joined: 10/2/2014
Posts: 362
Hey Jim, pretty bizarre plug. Nice original pan and they did that ?? Well the good news is the pan can be replaced without removing the motor. I think we should be allowed to go back and shoot some of these previous owners. Some people should stick to beat up Camaro's and Mustangs !!

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John Sigmund
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2/18/16 2:40pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
knotacare
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Newark, DE - USA

Vette(s):
1968 Conv, 454HO,500HP-600TQ, TKO-600,3:70 HD rear,hotrod air, custom paint & suspension,1973 Ruby Red,T-top, 383 Stroker, TK)-500,frame off restro, 1977 Yellow (1 of 51 ) L-48 4 spd, 99% original.

Joined: 7/26/2004
Posts: 453
I would drop the pan & weld a plug in place then grind smooth & paint . Not to hard of a job & if you don't weld it wouldn't cost much for some to do it for you. I agree buba's should be punished, they seem to cause more problems than the old cars do..
Alan


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2/18/16 7:05pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Thanks Joel for taking care of the photo for me. Yes, it is hard to believe that someone would do something like that. No doubt Bubba left his mark here! I am going to eventually fix it, either by replacing the pan, or having a better patch welded in as suggested above. Having never dropped an oil pan on a vette is there anything inside the pan I'll need to be concerned with? Can I just drain it, remove the bolts and down she comes? And, will it clear the power steering unit? Thanks guys!

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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/19/16 5:54pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Tooch,Depending on your engine and the pan you have,it may be necessary to remove or rather loosen and lower the steering plunger center link.

I have had to change pans on a Vette in the past that was just a little bigger than the one I took out,however not to worry.
If you need to get by the steering and can not then,you would go to the idler arm (right side on the frame) scribe an outline of the Idler arm so it will go back to it's original place.You should be able lower Arm,steering center link etc.and take pan bolts out and drop the pan.I would have everything ready with either a replacement pan(I would suggest buying another not use the tampered pan)and replace the pan ASAP and re bolt the idler arm.
It's not as bad as it sounds.
I don't have a picture of the Idler arm in place on the frame,however Joel or another member may have a picture of the Idler arm.
Good luck 
    Sal C


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2/20/16 8:19am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Thank you Sal, I know where the idler arm is located. I was hoping the pan removal wouldn't require anything else to be touched, but I don't think it will clear. I'm probably going to have my mechanic help me with this job. It will be a lot easier to do on his lift. More so, than me lying on my garage floor trying to to do the job.

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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/20/16 9:16am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Agree to the lift,it will be a lot easier.I did mine in my driveway and it was a narrow driveway.Nevertheless I got it done.

Good luck, you will not have a problem.
   Sal C


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2/20/16 10:59am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
dwa175 Gold Member
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oakville, CT - USA

Vette(s):
1979 coupe and now 2007 c-6

Joined: 7/19/2014
Posts: 183
hi   when pan is off  have a good scraper and make sure all the old gasket is off    double check you don't want oil leaks and have do to over  everybody says ok but  leave some gasket you will have leaks  hate to see you do it twice.  dwa  

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2/21/16 8:00am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Most say the felpro one piece gasket is the best to use, instead of the 4 piece. Any thoughts?

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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/21/16 10:44am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Tooch1  Agreed For the last few years since Fel Pro put out this one piece gasket pan gasket I have used on all my engine builds.

I would also suggest a thin,very thin,amount of RTV black on the gasket before you set the pan in place.Also extra bit of the black "under' the the front and rear "loops", to assure a great seal from timing cover and rear of the pan.
Good Luck.
     Sal C


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2/21/16 5:15pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Thank you Sal, Will do! I'll let you know how things work out, Tooch

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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/21/16 7:20pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Your welcome and do let me know how you make out.

Sal C            nosal1


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2/22/16 7:32pm - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Hi Sal,
I have a quick question for you concerning the Fel Pro Gasket. Did you re-use your original oil pan bolts with the correct head markings?
I notice the bolts that come with the gasket are about 4 threads longer than the originals. BTW I decided to tackle this job myself in my garage. We've had some unseasonably warm weather the last couple days here in SW Pa. Today was in the 50's so I took on the job. Not too easy under there being 6'2" SmileI had to take the two upper control arm bolts out, and it hung down enough to let the pan out from under the PS linkage etc. I am having my mechanic weld in a patch, and I'll do the body work on the pan, and refinish up like new. I was hoping to use the original bolts. But, If means I'll have leaks, then I'll use the others. That Blue Gasket seems a bit thicker than the old cork style. (Will the Blue show between the block and the pan?)  I want to have the car judged, at Chapter in the spring, so these little things matter. 
Let me  know about the bolts ASAP.
thanks again,
Tooch



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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/23/16 4:25am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Toch1,  Yes the bolts are a little longer as the gasket is thicker and require the longer length,,Definitely use the bolts with the gasket.I assume the inside of the pan is in good shape.As suggested by dwa175 I think,be sure to clean the gasket surface very good,especially the front and rear loops.I have used metal sand paper (also wire wheel ) on the front and back to be sure the RTV and the gasket seats better.Have fun and be careful under the car.I am assume you have the car is up on car jacks.Take care,  Sal C        nosal1



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2/23/16 8:42am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
Former Member
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Sal, I was afraid you were going to say that about the original bolts. Oh well, I'm sure this won't be my only pt. deducts anyway. Yes, my pan lip is very clean, as is the bottom of the block. My mechanic is going to make sure the rails are nice and straight too. I'm also getting different opinions on using the sealant on the rails of the pan. My guy (and others) say it's only needed in the front and rear corners. .?? Thanks, Jim

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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/23/16 9:25am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Tooch1,    I use the black RTV as an assurance of a good seal between the pan and gasket.This an additional step I take to be sure I don't get a leak.I am too lazy to do this job twice,let alone once. It is your choice either way is alright.   Good work and good luck.      Sal C                nosal1



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2/23/16 10:42am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
Tooch1
Former Member
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Vette(s):
1973 Convertible, L48, 4 Speed, PS, Numbers Matching, Mille Miglia Red, Dark Red Interior NCRS Top Flight Award Chapter/ June 2016

Joined: 11/29/2015
Posts: 47
Thanks, I have the clear RTV Silicone Adhesive. Any difference in the black, or just your preference?

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Tooch1 Pittsburgh Tri State Chapter NCRS Laurel Valley Corvette Club
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2/23/16 10:57am - Reply: 'Re: 73 SB Oil Pan Side Plug Repair???'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 238

Tooch1 I use both RTV however,because the Black RTV I use has more universal usage and I have more confidence in it's sealing,however I do use the adhesive clear on special cases where it needs to be an adhesive sealant. No problem.Like I say the Black is also used where sensors are installed to prevent leaks like on O2  sensors.

Sal C                  nosal1


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