Originally Posted by Walkenvol
(Post 660091)
Yea, Ford starter silanoid (sp?).
Do you have an opinion on whether this would be a good choice when transplanting the OM617 into a different vehicle? Would allow you to ditch the whole GP system/sensors. Is the timed system worth the extra trouble to keep it going? ---AutoMerged DoublePost---
Originally Posted by mr_manny
(Post 660125)
another nice ford starter relay glow-plug solution :
vincewaldon.com - HOW-TO: Pimp your glowplug wiring I'm leaning towards maybe adding a buzzer :) |
Originally Posted by mr_manny
(Post 660125)
another nice ford starter relay glow-plug solution :
vincewaldon.com - HOW-TO: Pimp your glowplug wiring I'm leaning towards maybe adding a buzzer :) |
The Benz system has a timer that turns the GPs and light on with the key.After 30 seconds the GP relay is shut off and the light goes out.Turn the key to start.
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Thanks Ben, but I was inquiring how Manny wired his repower or if he kept the MB system.
I didn't realize the MB system kept the GP's on for 30 seconds, thought it was variable depending on the engine temp? The MB system sounds preferable in theory, but it is more complicated. When I performed the compression test the insulation on the wires to the GP's was brittle and cracking and will need replacement before the motor transplant. While the MB system is currently working in the donor car, in my case its 29 years old. It appears to have a relay that adjusts the GP powering duration based on engine temp which has to come via the MB temprature sending unit. I was planning to replace the MB sending unit with the comanche sending unit so that the existing jeep temp guage would work. Don't know the particulars of how either sending unit works (ohms), but its not likely the jeep temp guage will work from the MB sending unit. I suspect replacement of the MB GP relay switch is not inexpensive when it does finally give up the ghost. Somehow, the MB system is also tied to the key switch which will also need to be adapted to the comanche switch along with installing the dash light and buzzer. For me, I'm attempting to use the KISS theory whenever possible as I'm not that smart. Ditching the MB system for a simplified system with a single button and a cheap starter silinoid sounds pretty simple? |
Relay glow-plug circuit is yet to be installed :P
Currently in the middle of my swap, and have a few other issues to address. The addition of a buzzer, is because I was thinking of utilizing a toggle switch. Seemed like a better idea, then holding a momentary switch. The link also references individual LEDs (also on the list)...don't know if anyone caught that. Individual glow-plug failure indicators are also a good thing :) |
I am using the Benz relay in my Cherokee. It was simple to hook up, heavy guage wire to 12v hot all the time, one wire to 12v key on and one wire to a dash light. I used one of the red lights on the left side panel(the one where the 4x4 indicator is) that wasn't being used. The light stays on for about 5 sec or so, then start. The relay keeps power to the glow plugs for a little longer while it is running, to help the burn until it gets warm. If your motor is healthy, it doesn't take much glow time.
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Originally Posted by FTE
(Post 660941)
I am using the Benz relay in my Cherokee. It was simple to hook up, heavy guage wire to 12v hot all the time, one wire to 12v key on and one wire to a dash light. I used one of the red lights on the left side panel(the one where the 4x4 indicator is) that wasn't being used. The light stays on for about 5 sec or so, then start. The relay keeps power to the glow plugs for a little longer while it is running, to help the burn until it gets warm. If your motor is healthy, it doesn't take much glow time.
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FTE - Thanks for the info as I wouldn't have thought the GP's were designed to stay on after initial firing. How did you hook up the Cherokee's temp guage as I'm assuming the MB GP relay system must use the MB temp sender to determine the motor temp and adjust the length of time the GP's are powered? Have you gotten the cruise, tach, or oil pressure working yet? How about A/C?
Ben - Great point about removing the load to a starter solenoid. Also, you would be set up to bypass the MP system in the future if it eventually fails without having to purchase expensive MB relays Manny - I could never be comfortable with a toggle switch no matter how many warnings were attached to it. Still a chance I could accidently leave it powered on by bumping it while existing the vehicle or simply my mind wondering. A button would be much more fail safe to me. |
good advice on the toggle...
thanks |
Originally Posted by Walkenvol
(Post 660995)
FTE - Thanks for the info as I wouldn't have thought the GP's were designed to stay on after initial firing. How did you hook up the Cherokee's temp guage as I'm assuming the MB GP relay system must use the MB temp sender to determine the motor temp and adjust the length of time the GP's are powered? Have you gotten the cruise, tach, or oil pressure working yet? How about A/C?
Ben - Great point about removing the load to a starter solenoid. Also, you would be set up to bypass the MP system in the future if it eventually fails without having to purchase expensive MB relays Manny - I could never be comfortable with a toggle switch no matter how many warnings were attached to it. Still a chance I could accidently leave it powered on by bumping it while existing the vehicle or simply my mind wondering. A button would be much more fail safe to me. |
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