Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 08-13-2022, 01:23 AM   #1
aussie merc
Senior Member
 
aussie merc's Avatar
 
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
Default stromberg 48 ???????

ok stripping down a 48 for refurb need some of our experts to chime in some advice 1 what size are the holes in the emulsion tubes has anyone ever altered these if so what was the effect for the size 2 what jetting is standard and is high altitude still 3 sizes down on these 3 float level at what fuel psi with what size fuel inlet
aussie merc is offline   Reply With Quote
Old 08-13-2022, 07:57 AM   #2
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 4,725
Default Re: stromberg 48 ???????

The 97,48 and 81 take the same emulsion tubes #36 (0.1065) and #57 (0.043) closing the small holes will effect performance make sure all holes appear to be circular in shape. Std. main Jets are .048 and #63 (0.037) power valve. Use the 0.098 inlet valve and fuel pressure between 2-2.5
Terry,OH is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 08-13-2022, 09:14 AM   #3
Bored&Stroked
Senior Member
 
Bored&Stroked's Avatar
 
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,012
Default Re: stromberg 48 ???????

Quote:
Originally Posted by Terry,OH View Post
The 97,48 and 81 take the same emulsion tubes #36 (0.1065) and #57 (0.043) closing the small holes will effect performance make sure all holes appear to be circular in shape. Std. main Jets are .048 and #63 (0.037) power valve. Use the 0.098 inlet valve and fuel pressure between 2-2.5
Thanks for the details on the drill sizes!
Bored&Stroked is offline   Reply With Quote
Old 08-13-2022, 04:57 PM   #4
aussie merc
Senior Member
 
aussie merc's Avatar
 
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
Default Re: stromberg 48 ???????

ok which holes are the small ones as they all appear to be the same size
aussie merc is offline   Reply With Quote
Old 08-13-2022, 06:01 PM   #5
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 4,725
Default Re: stromberg 48 ???????

The hole through the center from one end to the other, is the larger hole
Terry,OH is offline   Reply With Quote
Old 08-14-2022, 05:42 PM   #6
scicala
Senior Member
 
scicala's Avatar
 
Join Date: Jun 2010
Location: Detroit suburb, MI
Posts: 3,697
Default Re: stromberg 48 ???????

Sponsored Links (Register now to hide all advertisements)
The smaller holes on the side are there to allow air from the main air bleed to mix with the fuel to help vaporize the it.

Sal
scicala is offline   Reply With Quote
Old 08-15-2022, 12:00 AM   #7
aussie merc
Senior Member
 
aussie merc's Avatar
 
Join Date: Sep 2016
Location: sydney australia
Posts: 1,025
Default Re: stromberg 48 ???????

so i gather putting a tap in them to extract them basicly destroys them as the bore will now be oversize
aussie merc is offline   Reply With Quote
Old 08-15-2022, 06:41 AM   #8
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 4,725
Default Re: stromberg 48 ???????

Tapping the end with a few threads, so they can be pulled out, does not make them bad.
Terry,OH is offline   Reply With Quote
Old 08-15-2022, 12:00 PM   #9
scicala
Senior Member
 
scicala's Avatar
 
Join Date: Jun 2010
Location: Detroit suburb, MI
Posts: 3,697
Default Re: stromberg 48 ???????

They are not in there very tight. I have used a fine tipped easy out without any damage done.

Sal
scicala is offline   Reply With Quote
Old 08-16-2022, 06:27 AM   #10
Bored&Stroked
Senior Member
 
Bored&Stroked's Avatar
 
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,012
Default Re: stromberg 48 ???????

I've pulled them out many times - sometimes I replace them with new ones from Clive (Stromberg 97). Usually they pull right out (I just tap the ends of them a bit and put a screw/nut on them to pull them out). Then I take a fine file to clean up the bore ends when they're out.
Bored&Stroked is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 07:39 PM.