| Author |
Message |
James Robinson (Jjrbus) (209.26.169.215)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, June 10, 2001 - 7:04 am: | |
Are the front and side turn signals also suppose to be marker lites? they have adual filament bulb 79 MCI5C
Work/Play safely Jim Robinson |
chad (12.4.214.178)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 13, 2001 - 11:46 am: | |
no they are just flasher lights.
check the continuity and I think you'll find that
they may have dual filaments but are connected in
either series or paralell to create one circut
hth
chad |
jimnh (64.12.104.13)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 13, 2001 - 8:13 pm: | |
It's a 24v system and the two filaments are connected in series in the 24v lamps. Directionals only in this case.
Jim |
Clarke Echols (216.17.134.3)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, June 16, 2001 - 3:31 pm: | |
It doesn't make sense that the filaments would be in series. An 1157 bulb has two filaments, and they can be wired in series (but the bayonet base cannot be grounded if you do because both filaments connect to the metal base around the bulb. There is one "gotcha", though. At 12 volts, one filament (the one used for marker or tail light) only uses 0.6 amp whereas the flasher filament draws 2.3 amps. Therefore they cannot be wired in series for a turn-signal application. |
jimnh (152.163.201.43)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, June 17, 2001 - 7:28 pm: | |
Clarke- A series configuration in this case makes perfect sense. If you had two 12 volt filaments in parallel they would each carry 24 volts and instantly fry. The 1157 bulb is a 2 filament 12 volt automotive bulb and bears no relationship to the 24 volt ones used on the MCI's.
Jim |
Steve Fessenden (63.27.88.199)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 18, 2001 - 3:41 pm: | |
You are talking about the bulbs that have two filaments but only one terminal at base for only one circuit. Are they in series inside the bulb, or is it just a two filaments so they can be replaced when they dim to one filament?
Steve Fessenden |
jimnh (152.163.204.43)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, June 18, 2001 - 7:38 pm: | |
I'm talking about the MCI side directional lights that use the 624 bulbs (and the 1638 brake light bulbs are wired the same). They have a bayonet base that is not connected to anything and two terminals on the bottom. The two filaments are wired in series internally so if one filament goes, the bulb is history!
Jim |
Clarke Echols (216.17.134.118)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, July 07, 2001 - 11:28 am: | |
624 and 1638 bulbs are SINGLE-FILAMENT 28-volt marine bulbs. They have double contacts on the end like an 1157, but the single filament is wired to those contact pads only, and there is no connection to the brass base. They also do not fit the same socket as the 1157 because the 1157 has the bayonet pins at different heights from end of the base to prevent inserting the bulb backwards.
The 624 bulb is a low-current marker/clearance-light bulb, and the 1638 is a higher-current turn-signal bulb.
Data from Wagner Lamp and Flasher Specification Guide.
Clarke |
Jim Ashworth (Jimnh) (64.12.106.66)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, July 08, 2001 - 5:32 pm: | |
Well, Clarkie, I guess you've never actually seen one, have you??? Get one in your hot little hand and look at it.
Jim |