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Username Post: Oil Pan Bolt Size        (Topic#358751)
2D51STYDLX 
"9th Year" Silver Supporting Member
Posts: 1055
2D51STYDLX
Loc: So. Prairie Washington
Reg: 03-03-11
11-09-19 09:36 AM - Post#2779841    

Gonna take the 51 up to my friends shop who has a lift, were going to do the motor mounts and oil pan gasket. Can someone tell me the size and number of bolts I need to replace the straight slot screws, I want to be prepared when I get there.

Roger
1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine



 


2blu52 
"18th Year" Silver Supporting Member
Posts: 19043
2blu52
Age: 86
Loc: Montana
Reg: 03-12-02
11-09-19 09:45 AM - Post#2779842    
    In response to 2D51STYDLX

Well the screws are stove bolts. 1/4 inch possibly.

"PEACE IS THAT GLORIOUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
2D51STYDLX 
"9th Year" Silver Supporting Member
Posts: 1055
2D51STYDLX
Loc: So. Prairie Washington
Reg: 03-03-11
11-09-19 11:09 AM - Post#2779844    
    In response to 2D51STYDLX

Anybody know if the push rod cover uses the same stove bolts, if so ill pull one, case closed.

Roger
1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine



 
2blu52 
"18th Year" Silver Supporting Member
Posts: 19043
2blu52
Age: 86
Loc: Montana
Reg: 03-12-02
11-09-19 02:29 PM - Post#2779847    
    In response to 2D51STYDLX

same thing those bolt are te reason we call Chevys Stove bolts

"PEACE IS THAT GLORIOUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
RAM_51 
"3rd Year" Silver Supporting Member
Posts: 5431
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
11-09-19 02:53 PM - Post#2779849    
    In response to 2D51STYDLX

Couldn't resist showing the difference between the two. They are both 1/4-20...but originally quite different. These are from a 1951 235. The pan bolt has no washer, while the side cover uses a permanently affixed star washer. Note also the difference in the head.

[UPDATE: I have since learned that both the side cover and pan screws are the same. So the screw with the incorporated star washer is used in both places.]

Attachment: Pan_Bolt_vs_Side_Cover_Bolt.jpeg (2.32 MB) 2 View(s)




1951 Fleetline Preservation
'51 Fleetline DeLuxe 2 DOOR SEDAN (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Oxidized Red)
'50 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
2D51STYDLX 
"9th Year" Silver Supporting Member
Posts: 1055
2D51STYDLX
Loc: So. Prairie Washington
Reg: 03-03-11
11-09-19 05:49 PM - Post#2779863    
    In response to RAM_51

Thanks Ram, any idea why no lock washers on the pan screws ?

Roger
1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine



 
RAM_51 
"3rd Year" Silver Supporting Member
Posts: 5431
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
11-09-19 06:50 PM - Post#2779869    
    In response to 2D51STYDLX

I'm not sure...I'll have to inspect closer. I'll have to go out in the shop with a flash light to make sure.

1951 Fleetline Preservation
'51 Fleetline DeLuxe 2 DOOR SEDAN (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Oxidized Red)
'50 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
RAM_51 
"3rd Year" Silver Supporting Member
Posts: 5431
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
11-10-19 10:28 PM - Post#2779949    
    In response to 2D51STYDLX

  • 2D51STYDLX Said:
any idea why no lock washers on the pan screws ?


I did go back out and recheck the '51 235. I have to correct myself. It would seem that the one screw that I dropped out of the pan was different than all the rest. That said, all the rest on the pan of the '51 235 and of the '50 and '52 216s I have were the same as the side cover screws that is in the photo above. Good thing I went back out to check. So, they are all the same and all have the incorporated star washer. The '53 truck had cap screws...I could see that through all of the built up crud...but I could not tell if there were any type of washer on that 235. I'm sure 1/4" - 20...but I couldn't say if those are original.


1951 Fleetline Preservation
'51 Fleetline DeLuxe 2 DOOR SEDAN (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Oxidized Red)
'50 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
2D51STYDLX 
"9th Year" Silver Supporting Member
Posts: 1055
2D51STYDLX
Loc: So. Prairie Washington
Reg: 03-03-11
11-11-19 06:45 AM - Post#2779961    
    In response to RAM_51

I it possible the 1 that you removed was a corner screw and they are a bit longer ?

ps thank you sir !

Roger
1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine



 
RAM_51 
"3rd Year" Silver Supporting Member
Posts: 5431
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
11-11-19 07:41 AM - Post#2779966    
    In response to 2D51STYDLX

No...the odd sized one was just to the rear of the fuel pump. I thought perhaps it was switched with the one that holds the clip for the throttle return spring...but the engine was in such a place that made that very difficult to see. There are bolts with 1/2" heads at each corner of the pan.

1951 Fleetline Preservation
'51 Fleetline DeLuxe 2 DOOR SEDAN (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Oxidized Red)
'50 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
2D51STYDLX 
"9th Year" Silver Supporting Member
Posts: 1055
2D51STYDLX
Loc: So. Prairie Washington
Reg: 03-03-11
11-11-19 06:47 PM - Post#2780012    
    In response to RAM_51

Maybe where the draft tube goes ?.

Roger
1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine



 
RAM_51 
"3rd Year" Silver Supporting Member
Posts: 5431
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
11-11-19 07:42 PM - Post#2780015    
    In response to 2D51STYDLX

No...it was holding the pan on....nothing to do with the baffle if that's where you're going.


1951 Fleetline Preservation
'51 Fleetline DeLuxe 2 DOOR SEDAN (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Oxidized Red)
'50 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 
2D51STYDLX 
"9th Year" Silver Supporting Member
Posts: 1055
2D51STYDLX
Loc: So. Prairie Washington
Reg: 03-03-11
11-11-19 09:56 PM - Post#2780020    
    In response to RAM_51

I thought the draft tube arm was secured with a oil pan screw ?

Roger
1951 2 door Deluxe Bone stock, well not quite, bucket seats.
Broken hearts and dirty windows
Make life difficult to see
Thats why last night and this morning
Always look the same to me
John Prine



 
RAM_51 
"3rd Year" Silver Supporting Member
Posts: 5431
RAM_51
Loc: Yakima, WA. USA
Reg: 12-28-02
11-12-19 10:49 AM - Post#2780043    
    In response to 2D51STYDLX

Oh yes! You're right...if the tube still has that arm on it. Many times that is one of the first things to be tossed...then the draft tube is hammered on with a ball peen hammer crushing the raised lip on it. That may be. Good call.

1951 Fleetline Preservation
'51 Fleetline DeLuxe 2 DOOR SEDAN (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Oxidized Red)
'50 Styleline DeLuxe 4 DOOR SEDAN (Mist Green)


 


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