Blowby is combustion gas getting past the piston rings due to wear/cracked piston. It doesn't come out of the radiator it comes out of the engine oil fill hole with the cap off. If you have combustion gas getting into your cooling system you have a blown head gasket or a damaged head.
Thank you for the clarification and respectful comment. Lot of rude comments for this and I admit I was wrong. Fortunately I have never had to deal with blowby so the concept was completely foreign to me!
@@h1ghy1eld25 Some blow by is normal. It’s the normal huffing and puffing of the pistons going up and down. If you had a real issue, it would manifest in other ways. Blue smoke, oil consumption, etc.
@@rsz90182 Military vehicles come out of a motor pool. Sure, your unit may have a dozen Humvees assigned, but it’s not like any particular one is assigned to you as your ride. And most drivers are 19 year old kids who drove em like they stole em. Very hard lives.
my favorite line is “you can research that yourself” i felt so welcome to continue to watch, bc of course im not watching this for research or anything
As a former Motor Transport Mechanic in the USMC from 1996 - 2000, we had 6.2L engines. These were lower quality builds and might last 75,000 miles if properly used and maintained. The government makes purchases from lowest bidders on most items. This proved to be too costly for the government in rebuilds, so they switched to the 6.5s in the later models. I never saw any of these in action though, as they came into service after my enlistment was up. It is a fun toy but the fuel mileage in them was poor. They have geared hubs at the wheels to reduce the gearing to appropriate levels to make them a decent off road vehicle capable of pulling heavy loads. They operate off of a 24vdc system so this should be kept in mind. They are relatively easy to work on. This being said there's a good chance that it was operated by individuals that were relatively untrained and operated in less than ideal environments. Don't be surprised by the condition you might find them in. As the author said, the tenant of repairing tactical vehicles is replace the unserviceable part with one that is serviceable. As long as the vehicle starts and moves under it's own power, it's considered repaired and placed back into service. I'm not painting a bad picture, I'm just saying what we dealt with while that vehicle was in service.
Do your research kids, I got mine for $5500, M1043A2, Slantback hardtop, no hood and top of motor was open (didn't care cuz I'm doin a Cummins swap anyway). Found a hood in New Jersey for $400.00 Vehicle, state tax, county tax and auction fee added up to $6527.00 I was expecting a long wait for EUC and Boom! 4 weeks later they released it to me. Mad dash to Georgia from Mass(i thought I was gonna have more wait time to prepare for pickup. (Boss was cool enough to give me time off and the shop truck and trailer on short notice)). SF97 showed up in the mail about 2 months later....overall, it wasn't too bad of a process. For me the worst part was the looooooong a$$ trip trailerin her home. Hope my experience will help someone else be more prepared :) EDIT TO ADD : Best month to buy(by my research) is early May to mid-June....look at sold units to see if that's still holds true.
Blow by is cylinder pressure escaping past or "blowing by" the piston rings into the crank case, reasons are worn rings or worn cylinders. Chances are that engine got dusted from an ill maintained filter and the rings or cylinder walls are worn. The pressure in the coolant is from the dreaded #8 crack where the block cracks at that cylinder due to poor cooling. The 6.2 had some of this as well but the 6.5 turbo is the most notorious. Cant remember off hand what to look for to see if it has an early block thats susceptible or if its a later "super block". Easiest way to tell if its cracked is if the engine looses coolant from the degas bottle or reservoir or you see signs of that on the ground or around the reservoir. But odds are if your getting a HMMWV thats later than 02(I think) you most likely have the good block. The HMMWV got the good blocks first as well vs the civilian HUMMER H1 so the civi rigs are harder to know cause a later model can still have the old block. Just food for thought.
I waited 8 months for my humvee to get approved I got an m1123 in may 2020 for $8k and It’s going to be shipped tomorrow super excited it took awhile to get it
@@Brady.John87 yes I’m very happy about it I paid it to get it shipped here in San Jose CA from Yermo CA for $600, paid $8k on the humvee it self but the humvee i got is not running, I still haven’t got it started, but I got it to my door for around $9k total
Absolutely check with your local DMV PRIOR to bidding on a HMMWV. There are some states out there that WILL NOT register them. It can take as long as 6 to 8 months after you win the bid for the End Use Certificate (EUC) to clear before your vehicle gets released from GL if you haven't had one cleared previously. As a rule of thumb anything under $4800 is a non-runner with an incomplete engine. Sometimes this can be a minor thing and sometimes it's going to mean looking for another (expensive) engine.
Couple of other thoughts... the 6.2 is easier to run veggie oil fuel, and Banks makes a nice turbo package for this engine. You may want look for the uprated heavy duty chassis if you plan to add weight (payload) ...but if just looking for a good off roader, those with high load springs will be harsh if not loaded down. The 200 amp alt/generator is an expensive unit...be prepared for sticker shock on some maint. items... Hunt surplus for the special tools sets made for these vehicles too.
The company itself bids against you to push you to bid higher❗❗ Brother-in-law used to work for a company that sold military vehicles and his job was to bid against potential customers to get as much as they could for them! There are chances to get some vehicles under $7,000 because they'd have too much inventory and just wanted it gone. Just keep pushing forward ❗
Having driven (read: beaten the ever-living piss out of) an uparmored version of these as intended, the best advice is to let someone else go through this process, let them go underwater fixing the damage we did, and then pick up your toy. And it IS a toy, not a daily driver. Just look into servicing one of those planetary hubs and you'll get it. Hopefully. LOL.
Right. These things are ragged the hell out. I know, I helped rag them out. Nobody needs to get the armored. You'll crack you skull and it's insanely heavy. These are stupid for civilians to own, but hey if people want to throw money away and pretend to be in the army, whatever.
Thanks for sharing. I just picked up a 1993 M998 myself, currently in the middle of replacing the engine, fuel tank.. and everything in between haha 👍👍
The thing you called a radiator cap during the blow by portion is actually the oil fill neck. The thing they are showing you for blow by is not correct, they should be showing you the exhaust to check blow by. A brand new truck will spray oil out of the fill neck if you leave the cap off as the injection pump drive and timing chain are directly under the neck. (USMC 3521 (automotive mechanic) here.).
When I was in the military we were told never to sand, or be around burning paint without a complete respirator. Some HMMWV's have a CARC paint. I guess it was some special formula that protect it from chemical and nuclear weapons. Maybe someone knows everything about it, but that's what they told us.
I worked at a vehicle development company here in Detroit, and we applied the CARC coating to some of the "trucks" we worked on. That coating was sprayed in a separate dedicated booth. It's nasty stuff.
Blow by isn’t pressure getting into your cooling system, it’s gasses getting past the rings and into the crank case, you’ll usually always have some blow by but obviously allot isn’t good, you don’t want to pressurize your crank case, all you would have to do is replace the rings or if you don’t want to do that, it would be to put a catch can on it to release pressure to the atmosphere.
A cheaper way to get a humvee is to reserch your local army base DERMO yard location get on base go to DERMO and drive it home. Daylight drill weekend. You are golden.
@@hunchowiley8492 you dont want to piss off the army. Is as i said. Join the guard you will be able to snag one easy. Get cault prison time. It was tounge in cheek humor. I saw it a real thing.
Don't join the guard it's still active duty like regular Army as your going to basic & AIT then if you're stuck in a crappy unit after AIT it's a night mare just like Regular Army. Only go if you want to serve if it's your dream.
I won the auction April 15 of 2020 on a HMMWV. Call them once a month and then told me yesterday this is the fourth EUC they submitted and I’m still waiting.
We move everything from nw AM General's from Mishawaka, IN to chop shop at the government contractor at Tucson, AZ. My advice is if you can see the underside on a flatbed truck or lift to check wear, lube points, suspension joints, etc. I've got a unit on board right now that's leaking 3 types of fluid on a 700 mile haul out from Ogden to Bell, CA. Any truck driver with a flatbed or stepdeck tractor trailer can deliver. Ramps are a must if the buyer can't provide. As a commercial driver, I use this formula to meet my personal margin. Example: Milage ÷ ave fuel economy (5.5) x average trip fuel price x3 Current trip: 729÷5.5x4x3= $1590.55. This is the lowest possible margin the driver could do it for without taking a loss AND before a third party broker starts adding his percentage.
Please, please, please brother, go as in depth into the buying process as possible and I will study and take notes! Im planning on buying soon, but I want to travel the path youve already blazed! THANK YOU!
That pressure you're talking about is blowby. That means you're piston rings are worn out, letting gases from the combustion chamber into the crankcase. When that happens, those gases are under pressure and blowing oil and those gases both out of the engine, most noticeably from the oil fill tube.
When I was in the Army back in the last 1980's my vehicle obviously was a M998 and know all too well how it screams going down the highway, I was stationed in South Korea and was on a few highways and damn near needed ear plugs. Also you need to remember, how many ppl had your vehicle before you! Every Monday was PMCS Monday and need to do maintenance on your vehicle. Yeah you may take care of the vehicle but ppl before you may not have waited for the wait light to go off before starting and destroy the glow plugs!! I hated my vehicle when I first signed for it because when I would try to start it the thing would smoke like crazy because of the glow plugs we're bad. I would have to use gloves and hold the exhaust to make back pressure in the system and that would start it up. Then taking the plugs out was bad because if they are bad the plugs would swell and it would be a disaster getting them out and a trip to 3rd shop who would take the heads off in order to put new glue plugs in. I ended up reclassifying into the JAG CORP because I had just passed the Bar before joining the Army and so the rest of my 25 years I was an attorney
I always like seeing these real world stories of people who served and experienced the Humvee platform often. Thank you for serving our country first and foremost! Regarding the glow plugs, they make a tool now that works really well at extracting them. It will turn an 8 hour job into a 1 hour job and is a must have for Humvee owners! But you are right, these things were used and abused and put away wet. You have to expect that when you buy one for sure.
Blowby is not cooling system, its oil infill cap (thats shown in the video). Blowby is pressure from combustion in cylinders bypassing the valve runs into the top of the crankshaft housing. So a bit ‘more’ pressure at the open cap there shows excessive wear on valves and cylinders, especially when smoke is visible.
Bought my M1123 for $9,600 not including fees. Time to clear my EUC , won on 4-7-21 got my email on 6-18-21. Shipping from the Yermo CA yard to NJ $2,300 it was dispatched yesterday. Can't wait.
i just got my 1st Humvee! its set up like a 2 door truck. its a m1097a2. i was wondering how i know what c pillar to get to go from a two door to a 4 door. i have seen some and there definitely different. mine is currently a 2 door cloth top. and im definitely going to do a 4 seater and eventually get the hard top for it. just asking for your guidance before pulling the trigger. thanks for your videos they halp alot
3:32 if you see this box with the mil circular connector it has the 4L80E 4 speed with overdrive. The transmission is electrically controlled and that box is the transmission control unit.
Blow by at idle is normal for the 6.5l and 6.2l diesel. The way you test is rev it a bit and blow by will stop then your good. And actually that engine sounds great and minimal idle blow by.
I just wanted to help somebody out with the 6.5 turbo issue the 6.5 is a great engine if you get the right block Humvees do you have the right block right from Detroit diesel I believe where a lot of the civilian vehicles during that time frame I have blocks made all over the place from Canada to Mexico and some of the castings are horrible also if you Do you put a turbo charger on it just know that the valves in a 6.5 cannot take over 1200° I would advise putting a Pyro meter in between the turbo and the intake so you can measure the temperature coming from your exhaust back into your engine just food for thought don’t be scared of a 65 she’s just a little finicky
Your winning bid will have state tax (several States different rates) also auction fee minimum $1500 example I won 2009 M1123 2 man truck variant from Yermo, California for $10,100 plus $895 state and local taxes plus $1500 for a final invoice of $12499. Also important make sure to select location so that you are not bidding from a state that is $1500 miles away?
Here in Australia we have an well known online auction company that does exactly that. The company bids against you to push the price up. They use the same method of extending the time if a bid is made shortly before the auction ends. If they "win" the auction they just relist it and go through the process again. It sucks that they are allowed to do it.
thats a great video, thanks for posting, i have a 6.5 in a truck good motor but can be a pain in the A.. as times. can you go to the auction site in person and take a look at all the rigs or is it only online ??
I actually bid on that very hummer. I thought I'd win her for $7700. Wrong! It sold for $16,600.00. Ended up getting a 1999 M1097A2 last week. Now we wait.
I got it for $12,500 haha. Unless sit went to auction again because another buyer bailed I think this is a different Humvee Congrats on your m1097!! Good to have over drive!
I understand this is definitely not the way to go to get a cheap military vehicle. This seems to be fore someone with a great amount of trust and patience. I would nope right out, but it is a nice video. Thank you for the effort to explain deeper than a "used car salesman at the end of the month".
@kevin24seven because of the delivery area you mentioned I take it you are located in the STL metro area? Good to know there is a local community when I go this route next year
Yes please Iv been wanting to get one for awhile No rush drove by and saw them But now moved out of state There is one local that got me interested again in a town impound How much did you end up getting one for ? Looks like starting bid is usually 4800 Iv wondered if it goes real high or if they are cheap Back to watching vid !! Cool bid
my two cents. most diesels have a lil bit of blow by as noted in that video. until they warm up they will have a bit. if theres a bunch of pressure than that equals no bueno. for the most part GovPlanet doesnt wait for them to warm up.... good note for the the video but with an asterisk....
Are these all beat up, like they've been through a war zone? Bullet holes, IED dents, etc? They look pretty wide too, I might need to go places I never intended as well, any difficulty on narrow escape trails through the woods?
Not really, the only way to do so would be to just get an entire new hood which will cost you. Last time I checked I think about $500 or more. I am not even 100% sure that the hoods are interchangeable but I would be surprised if they weren't. I am not a fan of the guppy look either tbh.
Basically its the entire cooling stack, grille and hood that have to be changed. Theres actual frame extentions that move the grille out that would have to be removed. More work then its worth, as theres plenty out there that dont have the improved cooling system
From what I know, these things can be genuine nightmares. Some of them sit for years on end before they get sold. Motors are rebuilt to a bare minimum. Tires and suspension can be iffy, at best. If you can get one for like $7500, and put another $10-15,000 into it, you'd probably have something fun. But be aware, you're getting an old military unit, that's been stripped down to it's most basic running form. They aren't nice GM Duramax diesels that some of the civilian spec ones are. These are project vehicles, and they all need tons of work when you get them.