cdr valve problems?
Lead Driver
Joined: Nov 2003
Posts: 6,900
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From: Campbell River, B.C.
I'm not really well versed in timing by meter but considering the MPG results I am netting lately I think I have it pretty close. If you have access to a good diesel shop that does have the correct meter and you feel you can trust them however, then I think it would be worth doing if you are not comfortable timing by ear.
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Posting Guru
Joined: Mar 2010
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From: Upstate NY
You can't. Worst case senario is it will run like crap and smoke much worse. You can even time the injector pump 180 degrees off via incorrectly meshing the drive gear and still all that happens is lots of smoke and horrible power.
I'm not really well versed in timing by meter but considering the MPG results I am netting lately I think I have it pretty close. If you have access to a good diesel shop that does have the correct meter and you feel you can trust them however, then I think it would be worth doing if you are not comfortable timing by ear.
I'm not really well versed in timing by meter but considering the MPG results I am netting lately I think I have it pretty close. If you have access to a good diesel shop that does have the correct meter and you feel you can trust them however, then I think it would be worth doing if you are not comfortable timing by ear.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Then go for it. Just make sure you have a good record for where the timing marks are originally. Maybe take a high resolution picture of the marks with your camera before making the first change.
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Posting Guru
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From: Upstate NY
Senior User
Joined: Oct 2009
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You will need a fabbed up wrench or a half moon open end wrench for the 2 bottom nuts. I bought an S type wrench and just cut it to fit 14mm or 9/16. You can use a 19mm wrench on the front of the pump you will see where you can put this right above the top nut to help turn the pump to advance it or retard it. These pics should help!
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Joined: May 2008
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From: Bald Knob AR
If it was me and the truck is running good I would put a double dose of my favorite fuel system cleaner in it, fill it with fuel and take it out and drive the chit out of it till the tank is empty before I touched anything. A 93 with only 70k miles on it hasn't been run much. It needs brought up to full operating temp and then have the soot blown out of it and let everything seat back in. After that you will know if it has problems and not just be guessing.
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Posting Guru
Joined: Mar 2010
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From: Upstate NY
can I ask something, I've heard people saying they get 16mpg with there IDI but I have only driven 80 miles and I have went through half a tank? my primary tank is 18 gallons and I have been doing stop/go city driving I'm basically getting 9mpg? does this sound right?
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From: Bald Knob AR
I'm just guessing here but it sounds like you have been doing alot of tinkering around with the truck, letting it idle and such plus all that stop and go so 9 would be possible under those conditionsl. Have you filled it with fuel and checked the mileage or just guessing from the guage? That could make a big difference.
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Posting Guru
Joined: Mar 2010
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From: Upstate NY
I'm just guessing here but it sounds like you have been doing alot of tinkering around with the truck, letting it idle and such plus all that stop and go so 9 would be possible under those conditionsl. Have you filled it with fuel and checked the mileage or just guessing from the guage? That could make a big difference.
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