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Anyone know diesels? - 7.3L vs. 6.5L started by TheFastMan
August 21st 2009 at 12:23 PM
 
TheFastMan
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I was just curious of your thoughts about the Ford 7.3L non turbo, mechanical injection versus a GM 6.5L turbo diesel. Which puts out more horsepower? Reliability? Thanks!



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August 21st 2009 at 12:28 PM
 
Sledman74
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Im a GM guy but the Ford 7.3 was a stronger engine.



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August 21st 2009 at 12:33 PM
 
xINeEdSnOwIx
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7.3 more reliable.



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August 21st 2009 at 12:41 PM
 
ZR600cce
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You can chip out the GM to spin those tires pretty well Im not gonna even begin to act like I know a ton about diesels because I don't, but I know Snowest.com or diesel specific forums might be able to help you out pretty well. Another thing, we do have some guys on the forum that have diesels so they are gonna be more helpful.

That being said, don't make your decision based on what people on the forum say but take it into consideration. Some members chime in and are 15 years old^^^^ whereas some are wise men.



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August 21st 2009 at 1:15 PM
 
TUGHILLfever
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August 21st 2009 at 1:24 PM  [ Modified August 21st 2009 at 1:32 PM ]
 
flatlander_summit
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^^^That was an unintelligent post. Try going back to first grade and reading the post than drafting an intelligent answer. I looked at your profile to check your age only to find out you're 36, either you're lying on your age or I feel really sorry for your children.

Back on topic...

If you go for a 6.5 they have been known to crack blocks. Also, it seems like those 6.5 are notorious for injection pump issues. I believe the pumps had/have 100K mile warranty on them. Almost everyone around my area who had one had some sort of injection problem. We have a 93 2500ld with a 6.5 on the farm that has around 200K miles on it that just had the pump redone right before we got it.

The 7.3 NA or Turbo are pretty tough motors. I know there are a lot around with many miles on them. I think the biggest problem that you'll find with a ford pickup is that you'll almost always have to do front end work on them whether they are 1/2 ton or 3/4 ton. Usually that consists of ball joints, tie rod ends, etc.

For more educated answers there are a few forums that should be able to answer your questions specifically such as www.dieselplace.com, etc.



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August 21st 2009 at 4:15 PM
 
xINeEdSnOwIx
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Quote originally posted by ZR600cce

You can chip out the GM to spin those tires pretty well Im not gonna even begin to act like I know a ton about diesels because I don't, but I know Snowest.com or diesel specific forums might be able to help you out pretty well. Another thing, we do have some guys on the forum that have diesels so they are gonna be more helpful.

That being said, don't make your decision based on what people on the forum say but take it into consideration. Some members chime in and are 15 years old^^^^ whereas some are wise men.


Again, it seems like you always start stuff when ever I say something. I know the 7.3 are reliable, just because I'm 15 doesn't mean I'm retarded. I was going to get a diesel truck instead of a diesel mercerdes which I got now, but I did a lot of research which trucks had the best engine to run on vegi oil. Yes, we do make our own and run it in our tractor, mercedes, going to be camper, generator.
Now stop starting stuff.



2002 1/2 zr 440 sno pro
-D&D clutching
-Fox shocks
-6 inch bar risers
-C&A skis
-1.5 track
-RSI handguards w/ billet mounts
-RSI mountain bar

.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.

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August 21st 2009 at 4:33 PM  [ Modified August 21st 2009 at 4:35 PM ]
 
ZR600cce
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Quote originally posted by xINeEdSnOwIx
Quote originally posted by ZR600cce

You can chip out the GM to spin those tires pretty well Im not gonna even begin to act like I know a ton about diesels because I don't, but I know Snowest.com or diesel specific forums might be able to help you out pretty well. Another thing, we do have some guys on the forum that have diesels so they are gonna be more helpful.

That being said, don't make your decision based on what people on the forum say but take it into consideration. Some members chime in and are 15 years old^^^^ whereas some are wise men.


Again, it seems like you always start stuff when ever I say something. I know the 7.3 are reliable, just because I'm 15 doesn't mean I'm retarded. I was going to get a diesel truck instead of a diesel mercerdes which I got now, but I did a lot of research which trucks had the best engine to run on vegi oil. Yes, we do make our own and run it in our tractor, mercedes, going to be camper, generator.
Now stop starting stuff.


Am i starting stuff or are you reading into things to much? Grow up kid. I simply stated that he needs to not base his decision on what people on a forum say but to instead take things into consideration. This is especially due to some people having a wealth of knowledge do to having more years experience with diesel than you are old. Now here is where I'm going to directly state something specifically to you:

You may think that your an all-knowledgeable guru on diesels because you did a little bit of research before you bought a car. Congrats, your young, but your age limits your experience. THere are guys around here, such as Bigrok, who own diesels, and I would much rather take his advice on this topic, based on his knowledge, age, and experience.

Now, that being said, get off your high horse, you prepubescent kid. I've been a member of this forum for a long time and have had almost zero conflicts with anyone on this forum. Grow up.

Back on topic....



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August 21st 2009 at 6:52 PM
 
pudamobile
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Quote originally posted by flatlander_summit

The 7.3 NA or Turbo are pretty tough motors. I know there are a lot around with many miles on them. I think the biggest problem that you'll find with a ford pickup is that you'll almost always have to do front end work on them whether they are 1/2 ton or 3/4 ton. Usually that consists of ball joints, tie rod ends, etc.


Correct!! I've got a '99 F-150 5.4, and a '00 F-350 7.3 TD, both have had front end work. The seals on my hub went out on my big dog about a month ago, tore up the shaft and ruined the hub. but as for the motor....no comparison. I've got my 7.3 TD, we have a work 7.3 that's NA (bulletproof), and dad's got a 6.5 TD. The 6.5 sounds cooler with the turbo, but it's in the shot every-other week to keep it running. For an inexpensive older diesel, get the 7.3. You won't be disappointed.




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August 21st 2009 at 8:50 PM
 
TheFastMan
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Well I bought a 1990 F250 2x4 with the old 7.3L IDI non-turbo. I got a heck of a deal on it and just the other day I was cruising Craigslist (like always) and found a '96 1 ton Chevy 3500 4x4. I was considering emailing the guy and seeing if he wanted to trade, but wanted to know if it would be much of an upgrade. I haven't heard much good about the 80s and 90s GM diesels, but that was mostly about the 6.2L and I don't know a lot about the 6.5L. I did a little looking and I can get a turbo for the old gal here: http://www.bankspower.com/products/show/155/39 Anyone know of anywhere else I can look for a turbo?
Quote
I think the biggest problem that you'll find with a ford pickup is that you'll almost always have to do front end work on them whether they are 1/2 ton or 3/4 ton. Usually that consists of ball joints, tie rod ends, etc.


Yeah, this Ford I just bought needs some work; its got some bad tire lean.



Let it snow.

1979 Arctic Cat Jag 2000
1979 Arctic Cat El Tigre Cross Country
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August 21st 2009 at 10:53 PM  [ Modified August 21st 2009 at 11:00 PM ]
 
bigrok
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Quote originally posted by ZR600cce

Am i starting stuff or are you reading into things to much? Grow up kid. I simply stated that he needs to not base his decision on what people on a forum say but to instead take things into consideration. This is especially due to some people having a wealth of knowledge do to having more years experience with diesel than you are old. Now here is where I'm going to directly state something specifically to you:

You may think that your an all-knowledgeable guru on diesels because you did a little bit of research before you bought a car. Congrats, your young, but your age limits your experience. THere are guys around here, such as Bigrok, who own diesels, and I would much rather take his advice on this topic, based on his knowledge, age, and experience.

Now, that being said, get off your high horse, you prepubescent kid. I've been a member of this forum for a long time and have had almost zero conflicts with anyone on this forum. Grow up.

Back on topic....


If you really want my advise, I'd say get a 12v Cummins. Very simple to work on if it ever needs it. Very simple to get more power. Last forever. But I am not a "diesel expert" by any means. I've owned a diesel for about a year. That is my first and only diesel. If you were wondering about the Cummins, I know a few things about that.

My brother in law had a 7.3. It was a great truck. Great milage (2wd 5 speed) and could still pull a 20' stock trailer with ease. That is until his buddy borrowed it and had a seazure and t-boned a tree. I have no experience with the 6.5.

Here are a few forums you can join and read and learn about the engines you were asking about. There are a lot more forums out there. Just start reading and you will learn a ton. That's how I learned most of my stuff.

Ford: http://www.oilburners.net/forums/forumdi...y.php?f=34

Chevy: http://www.thedieselpageforums.com/tdpforum/



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August 25th 2009 at 3:32 PM
 
Pance
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Although I used to be a Cummins junky I don't know much about the other two motors. I'd have to agree a 1st gen cummins you can get for around 3k (reg cab 4x4).

The 6.2's and 6.5's I do know were very good on fuel though. I had a teacher in high school who could pull 28 mpg consistently out of his suburban with the 6.5, but on the other hand the amount of maintainenance he was putting into it probably offset the savings.

The 7.3 has always been a bullet proof motor, the NA is going to be a dog (although probably not any worse off than the 6.5), but you can usually find the banks turbo kits for them and they are pretty peppy then. Do a search on the www.dieselpowermag.com for an article a while ago on a 7.3 NA they had bought as a project truck...



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August 25th 2009 at 8:33 PM
 
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7.3 all the way



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August 29th 2009 at 11:08 PM  [ Modified August 29th 2009 at 11:13 PM ]
 
Sno-X-treme
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Quote originally posted by flatlander_summit

If you go for a 6.5 they have been known to crack blocks. Also, it seems like those 6.5 are notorious for injection pump issues. I believe the pumps had/have 100K mile warranty on them. Almost everyone around my area who had one had some sort of injection problem. We have a 93 2500ld with a 6.5 on the farm that has around 200K miles on it that just had the pump redone right before we got it.


My dads 94' 6.5 had both of those issues The heads crack and the injection system dying. Either the pump quits (which a real fun time to replace) or the PDM nukes itself. That's a PITA fix because it's mounted on the damn pump stock....it gets relocated with a heat sink then they're good.

I'd consider a 6.5 IF, and ONLY IF it had a replacement injection pump and the PDM was replaced and remounted away from the engine. But there's always that chance of the cracked head issue.




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August 30th 2009 at 10:07 PM
 
TheFastMan
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Thanks for the advice. I'm just going to stick with what I have now and put a turbo on it. I'm quite sure it has a 1 ton rear end anyway. Another question, has anyone attempted a 4x4 conversion before? I heard they are quite tricky.



Let it snow.

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August 31st 2009 at 1:10 AM
 
driftpounder
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^^^^it is a very tough job. the easiest way to do it other then just buying a different truck would be to get a front clip off of a wrecked 4X4 and stripping all the parts off it then basically welding then 4X4 front clip to the rest of the frame after removing the the old front clip. It's really alot of work and will cost big money to do.

The 6.5 turbo had a lot of different issues most of which are mention on here already, but the 6.2 was the identical motor only smaller displacement had very few issues, but was even more under powered then the 6.5. If your looking for a diesel motor with power and reliability all three of of Detroits big names have good diesels now each having its own problems, but all of them are fairly new, for older diesels the cummins and 7.3 fords are your best bet.



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August 31st 2009 at 9:01 PM
 
TheFastMan
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Yeah, I kind of figured. I can really only afford insurance on one vehicle and I wanted this Ford to be my daily driver, but after last winter I know it wouldn't make it. Oh well, maybe something I can screw with in the future. I guess I'll have to see how it handles snow. I know where I can get a parts truck, and a friend with a lot of mechanical experience owns a shop not far away.



Let it snow.

1979 Arctic Cat Jag 2000
1979 Arctic Cat El Tigre Cross Country
1970 Mercury 250ER
1973 Moto-Ski Capri 340
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