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#SBF-1 & SBF-2 Schematic Clarification

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 Post subject: SBF-1 & SBF-2 Schematic Clarification
PostPosted: Fri Apr 14, 2017 7:42 pm 
First Gear
Joined: Thu Feb 10, 2005 8:48 pm
Posts: 108
Location: Portland, OR
I'm looking at the main power supply routing schematic shown on the 92 FSM, Section 6-3, Page 14 and wondering if the SBF-1 and SBF-2 fuses were duplicated on this schematic. Perhaps I'm confused on the difference between the "SBF Holder" which shows a 45A fuse out to SBF-1 and a 30A fuse out to SBF-2 and then the two 30A fuses labeled SBF-1 and SBF-2 drawn within the main fuse box. Are these fuses in series?

I'm reworking the Subaru schematic for my Vanagon engine swap and just wanting to see if I'm understanding this portion of the schematic.

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1991 Legacy Sport Sedan - 4EAT
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1987 VW Westfalia Vanagon
- you know where this is headed


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 Post subject: Re: SBF-1 & SBF-2 Schematic Clarification
PostPosted: Tue Apr 18, 2017 6:20 pm 
Site Admin
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Joined: Tue Oct 15, 2002 11:37 am
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Location: Houston, Tx
Nothing has been duplicated. There is an SBF-1 and a SBF-2.

For the "SBF Holder" those lines go out to other devices/connections. For whatever reason the 92 manual doesn't have that list. The 90 FSM has that list and lists the ABS hydraulic unit for SBF-1 from the SBF holder and air suspension for SBF-2. You can download the 90 wiring diagrams which show that table using the link below.

http://main.experiencetherave.com/subar ... agrams.zip

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Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: SBF-1 & SBF-2 Schematic Clarification
PostPosted: Tue Apr 18, 2017 10:51 pm 
First Gear
Joined: Thu Feb 10, 2005 8:48 pm
Posts: 108
Location: Portland, OR
Perfect. Didn't think anyone was going to respond to this nerdy of a question there for a while.

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1991 Legacy Sport Sedan - 4EAT
&
1987 VW Westfalia Vanagon
- you know where this is headed


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 Post subject: Re: SBF-1 & SBF-2 Schematic Clarification
PostPosted: Wed Apr 19, 2017 5:45 pm 
Site Admin
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Location: Houston, Tx
You're welcome :)

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Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: SBF-1 & SBF-2 Schematic Clarification
PostPosted: Wed Apr 19, 2017 6:05 pm 
First Gear
Joined: Thu Feb 10, 2005 8:48 pm
Posts: 108
Location: Portland, OR
What is the long time melting ampacity for the fusible link? Looks like the fusible link protects the alternator and alternator wiring from battery through-faults in case of a stator winding short. I'm thinking about reusing the engine compartment fuse box, but it may be easier for me to go with a small industrial enclosure and some touch safe fuses if I can find fuses with equivalent ratings.

_________________
1991 Legacy Sport Sedan - 4EAT
&
1987 VW Westfalia Vanagon
- you know where this is headed


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 Post subject: Re: SBF-1 & SBF-2 Schematic Clarification
PostPosted: Thu Apr 20, 2017 5:50 pm 
Site Admin
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Joined: Tue Oct 15, 2002 11:37 am
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Location: Houston, Tx
Unfortunately, I'm not sure about the melting time for the fusible links.

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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