I have a 1994 full-size Blazer 2-door with 6.5TD. Owned it since 2001. There’s 300,000 miles on the engine and transmission. Replaced timing chain once, a couple fuel pumps, many lift pumps. Oil cooler and lines. PMD is on a remote heat sink. The usual upgrades and bolt-on component replacements. Overall it’s been a fantastic vehicle. In warm weather 19 MPG driving around town.
I've just purchased a 3500 dually over here in the uk with the 6.5. Good to watch videos like yours as there is very little knowledge of this engine over here..look forward to more videos..
Just bought a 97 Chev 3/4 ton with a 6.5 diesel. Other than semis this will be my first diesel. I have got a handle on the 5.7 gas pot that I have been driving, so this is a whole new experience for this old retired trucker. Thanks for the video
The main webs on my 6.2 look about like your 6.5 here. I just picked up a crack-free 599 cast 6.5 block and a set of good heads, and I’m going to start my build from there. Good video. I’ll be sure to watch some of your others as well.
I just won a running HWWMV but no one bid on it but me. It was really hard to pull the trigger. My first GM diesel also. I got the two man 1998 1123 with 18,000 miles. It is in Yermo, CA. The clearance to pick it up may come in July at the earliest. Good luck with your HWWMV.
Thank you, 234k miles and i dont have much history on it past 230k other than i know it was abused and neglected by previous owner. I just got the optimizer block back from the machine shop so I will be working on a video explaining all those details soon
Posting one right now actually. Its not all that I wanted it to be but I have atleast gotten started on assembling some odds and ends. New heads are coming in tomorrow
Hi,how much can the heads be planed?And what do you do about the cracks between the valves?thanks.How many miles on the motor?Your shops not as bad as mine,hahaha.
Im not sure on how much the heads could be planed id have to ask my machine shop. I believe the cracks, if bad enough can reach the “steam jacket” and the valve seats both of which can cause issues. This engine had about 234000 miles on it, and was not very well taken care of by previous owner as you can see. Hopefully i can expand shop soon lol. Thanks for watching
You said the heads are probably salvageable. Are you just going to run them the way the are? I recently went through one of these with the 599 block. The block was good, but the heads had the same cracks. I replaced them with some new heads from Clearwater that are supposed to have extra material between the valves and they took the old heads as cores.
I ended up cleaning the soot off and removing a couple valves and found the heads to be far more cracked than it looked. I will probably end up buying promaxx heads
234k on the truck, but this engine was swapped in around 80k as a used engine so it’s probably closer to 250-300k. As you can tell it was not very well taken care of lol. Thanks for watching
Most I’ve seen tend to need rebuilt or replaced around the 275,000-325,000 miles. Not saying they don’t go further then that it just seems like most I’ve been around are definitely using a good bit of oil and smoke a lot both exhaust and blow by around those miles. Or the head gasket let’s go and it’s time to open them up.
Ive seen about the same thing, although more high mileage survivors than I expected. I still love these engines though and ver easy to work on. Hopefully this new one i am building will last a long time
I have a 1994 full-size Blazer 2-door with 6.5TD. Owned it since 2001. There’s 300,000 miles on the engine and transmission. Replaced timing chain once, a couple fuel pumps, many lift pumps. Oil cooler and lines. PMD is on a remote heat sink. The usual upgrades and bolt-on component replacements. Overall it’s been a fantastic vehicle. In warm weather 19 MPG driving around town.
I've just purchased a 3500 dually over here in the uk with the 6.5. Good to watch videos like yours as there is very little knowledge of this engine over here..look forward to more videos..
Thats awesome thanks for watching
Just bought a 97 Chev 3/4 ton with a 6.5 diesel. Other than semis this will be my first diesel. I have got a handle on the 5.7 gas pot that I have been driving, so this is a whole new experience for this old retired trucker. Thanks for the video
My 94 Chevy 6.5 has 410k km and still running strong.
The main webs on my 6.2 look about like your 6.5 here. I just picked up a crack-free 599 cast 6.5 block and a set of good heads, and I’m going to start my build from there. Good video. I’ll be sure to watch some of your others as well.
Thanks, I know nothing about GM diesels. I'm a Ford guy but, I just won a non running Hmmwv. I'm assuming the worst hoping for the best. 🍻🇺🇸
Thats the best way to go into it as you can see lol. Thanks for watching
I just won a running HWWMV but no one bid on it but me. It was really hard to pull the trigger. My first GM diesel also. I got the two man 1998 1123 with 18,000 miles. It is in Yermo, CA. The clearance to pick it up may come in July at the earliest. Good luck with your HWWMV.
Hell yeah
If you can, give us some info on motor use, mileage, issues, and game plan on replacing items. Good job, can’t wait for the next video.
Thank you, 234k miles and i dont have much history on it past 230k other than i know it was abused and neglected by previous owner. I just got the optimizer block back from the machine shop so I will be working on a video explaining all those details soon
@@averybryant when is the update coming for this 6.5 engine?
Posting one right now actually. Its not all that I wanted it to be but I have atleast gotten started on assembling some odds and ends. New heads are coming in tomorrow
@@averybryant nice the 6.5s are good engines, I know a few people that still run them here in little Rhode Island
Yes sir i love this truck and cant wait to get it back on the road
Hey nice video….I have a Hmmwv with a 6.5 Turbo …. What can I do to make it run better ??? Thanks
What is that manual you have? Looks really handy I need to pick one up!
GM 6.2 & 6.5 Liter Diesel... www.amazon.com/dp/1613255608?ref=ppx_pop_mob_ap_share
Year, mileage? Wondering what my 95 with 270K miles on it looks like inside.
Hi,how much can the heads be planed?And what do you do about the cracks between the valves?thanks.How many miles on the motor?Your shops not as bad as mine,hahaha.
Im not sure on how much the heads could be planed id have to ask my machine shop. I believe the cracks, if bad enough can reach the “steam jacket” and the valve seats both of which can cause issues. This engine had about 234000 miles on it, and was not very well taken care of by previous owner as you can see. Hopefully i can expand shop soon lol. Thanks for watching
How many miles on this engine, just curious, I have an engine with 106000 miles. No issues so far.
You have a long ways to go! There will be maintenance and replacement of various bolt-on components.
You said the heads are probably salvageable. Are you just going to run them the way the are? I recently went through one of these with the 599 block. The block was good, but the heads had the same cracks. I replaced them with some new heads from Clearwater that are supposed to have extra material between the valves and they took the old heads as cores.
I ended up cleaning the soot off and removing a couple valves and found the heads to be far more cracked than it looked. I will probably end up buying promaxx heads
Change the battery in your smoke detector!
I came here looking to see if it was just.me hearing things or indeed this haha
How many miles on this engine? Looking forward to seeing the new engine build.
234k on the truck, but this engine was swapped in around 80k as a used engine so it’s probably closer to 250-300k. As you can tell it was not very well taken care of lol. Thanks for watching
Most I’ve seen tend to need rebuilt or replaced around the 275,000-325,000 miles. Not saying they don’t go further then that it just seems like most I’ve been around are definitely using a good bit of oil and smoke a lot both exhaust and blow by around those miles. Or the head gasket let’s go and it’s time to open them up.
Ive seen about the same thing, although more high mileage survivors than I expected. I still love these engines though and ver easy to work on. Hopefully this new one i am building will last a long time
What book are you using?
Can you tell me where to find replacement bolts for the oil pan. They are discontinued at GM.
Check with unique diesel they might have them. If not i am not really sure where else
Cam it over anyway
Now taking donations lmao
@@averybryant i gotchu a dolla