09-07-2006, 01:13 PM | #1 |
Registered User
Join Date: Dec 2004
Location: grand terrace , caifornia
Posts: 338
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starter wires??
I have a 77 half ton w/350 small block. the engine starts from the remote starter but not from the cab. i think i wired the starter wrong. the manual i have is not clear on what wires go where. it only gives colors not terminals. the solenoid has 3 terminals correct? 1 is a battery terminal. can anyone explain to me which wires go where when looking at the solenoid from the front of engine? thanks
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09-10-2006, 03:00 AM | #2 |
Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: starter wires??
I have a 75 C20 and recently I re-did charging wiring as well as installing mini starter because of headers.
Well - starter should have three terminals. 1) The 3/8" stud should have label "B" it used for battery cable (2 AWG RED) and main DC bus feed (10AWG RED and 16AWG Black) 2) #10 sized stud labeled "R" is not used with HEI ignition system. It is a carryover from conventional points ignition systems that required field voltage for points based ignition systems. 3) #8 sized stud labeled "S" is used to activate stater. In 1975 model a 12AWG BLK wire is connected to terminal -6- of the master bulkhead connector located near your master brake cylinder. The following modifications improve starting and electrical system performance. 1) Replace starter cable with 0 or 2/0 sized cable or better - lower voltage drop between battery and starter. 2) Reroute and replace main DC bus wire with 8AWG directly from battery to the distribution junction block - typically located on the firewall to the right of the HEI. This modification eliminates hot starting problem plagaging many GM vehicles - battery to starter voltage drop is no longer an issue. Do not forget to use appropriate fuse-wire to prevent wiring fires in case of shorts. Good Luck RF
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"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
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