Starting problems - new info?

[fields_mj]

Okay, about a week ago I posted that my '93 was having some problems starting, and everyone agreed that it was probably in the return lines, or possibly in the lift pump. Well, I WAS planning going past the IH dealership in the way home today and picking up a set of return lines to install this weekend. Just to check, before I started this morning, I ran my pass mirror down so that I could watch the exhaust. Normal cold start, cranked a a few seconds, then finally fired and ran a little rough. I got a good size puff of white smoke, followed by a tiny black cloud, then another decent size puff of white smoke, then it cleared up. Is it still safe to assume that it's just the return lines or lift pump, or should I be shopping for an IP and some injectors too?

Thanks,
Mark

 

[ameristar1]

If the IP and injectors have not been done, you should go ahead and do them.

 

[fields_mj]

The truck has 164K on it, and I have no idea if/when they were done last. I planned on doing them NEXT year for 2 reasons. First, I would have the money to do it by then. Second, I want to add a turbo, and that way I could buy the right IP and injectors to use with a turbo and get the full benifit with out having to buy stuff twice.

I'm new to all of this so I know very little about the IP and injectors other than what's in the tech articals. At this point, if I HAVE to do them this fall, it may require that I go to the bank and take out a loan, which really makes me sick to my stomach to even think about.

 

[Agnem]

Rough running on startup is usually either air or glow plugs. You can usually tell the difference, because if it is a glow plug, you will have a constant miss until that cylinder warms up enough to fire. Gut feeling from what your describing is air. The white smoke is from bad timing, which can be the result of air, but also could be a leaky injector. Obviously your going to need to refresh your fuel system. If you do it now, or next year, that will depend on how long you are willing to live with the present condition.

 

[fields_mj]

The present condition doesn't really bother me. I just don't want to do any damage to the truck. I just got this truck a month ago, and I kind of want to drive it for about 8 more years or so

 

[Mat J]

you shouldnt need to get a different ip pump and injectors just for turbo. the g injectors pop at a little higher pressure and were for emissions or so iv read. and you can just turn your pump up to get more fuel. so you wont be buying anything twice.

 

[Diesel JD]

I wouldn't think you'll do damage. How long does your glow plug light stay on? Usually this condition is caused from air leaks at the return lines. I wonder if you are close to Mel or any other members with timing equipment cause adjusting the timing and getting your return lines fixed might get you by till next year. Pay as you go is a great thing to do, much better for your personal finances than borrowing as you well know. Good luck with things.

 

[fields_mj]

Sounds like I'll just do the return lines now then. Whew! When I bought the truck, the owner said it hadn't been started for about a week. I had a friend of mine start it, and I watched the exhaust. It only had a small back puff of smoke, no white stuff. Of course that was down in Jacksonville Fl. Same thing happens for me now in the afternoon when I get out of work, but in the morning, its had a chance to cool down a lot more, and it's also cooler out. I don't know if that would contribute or not. Doesn't matter a lot to me right now though. If the return lines should fix at least most of it, then that's great. I haven't actually priced them yet, but at around $35 I don't mind having to buy a second set of them next year.

I had already been told that a turbo will work just fine with a stock N/A IP and injectors, but thanks for the info anyway!. I'm not sure if the stock IP and injectors for a N/A engine have the same part numbers at those for a stock turbo or not, but I figured when I go to put the turbo on, I will get the ones for the stock turbo. I've kind of gathered from others on here that the IP won't make much of a difference, especially for the way I drive (I must be getting older), but the injectors can make a noticeable improvement. I'll be asking a lot more questions along those lines once I have actually purchased a turbo for it

 

[Diesel JD]

I'd say that's exactly backwards. The factory turbo spec injectors are nothing special. When you do buy injectors the Moose Misters would be the only thing that would be worth having over stock and they are still unproven and very expensive although a very nice piece of work as usual from Mel's guy. Best bet for your money is a Moose or similarly hopped DB2 pump at your local injection shop with a set of matched BB code injectors from Russ or Mel. If you don't want to go with crazy performance any 7.3 core and good stock rebuild will get you plenty of fuel, at least it has been plenty of fuel for me. I came "that" close to buying a DPS pump from Ken, but I was worried about his sketchy customer service if I had problems... I was very close to sending Mel a pump to get Moosed, but I didn't have an acceptable core and the relatively higher price and wait scared me away, mind you this was 2 years ago before he had this down and the Moose Pump proved how good it is. For now a stocker is plenty.

 

[fields_mj]

Stock it will likely be then. I'm not really wanting to dump a lot more fuel into the engine anyway. Just looking for something to give me a little more giddy up and go when I'm trying to pull out into traffic, or I'm trying to pass someone. I don't pull hardly anything, so it's not a matter of trying to make it up the side of a mountain. Just make it to work and back.

I'm sure I'll ask about all this again when the time comes, and before I buy anything. Right now I'm just trying to get some kind of idea of what I should be trying to do since this is all so new for me.

Thanks guys. You're all a great help!!!
Mark

 

[icanfixall]

A turbo pump has the numbers 5070 on it and the 5071 is the turbo standard tran pump. No real differance internally to either. Like posted... A set of BB from Russ or Mel or try to buy from anyplace but Diesel Care in Tenn. You will be fine. A stock pump can handle a tubo easily. I ran my motor over 100,000 miles turboed and a stock pump. Even a 6.9 pump will run fine. It just leaves some hp on the table. The G code injectors are not whats really needed. I have run 2 sets in my new motor and really don't like them. I will be changing them for "something better"... Are your return lines painted grey? If so they are original and its time to replace them and the injectors. Rebuilt injectors are just a costly as new so only buy new injectors... Unless Mel or Russ build you a set. Hope this helps you to understand whats being posted a little more. No big secrets kept here...