Thanks to Bespoke Post for sponsoring this video! Head to bespokepost.com/monkey20 and use code MONKEY20 to learn more and get 20% off your first box. Part 1 detroit diesel 8v92TA tear down. • Detroit diesel 8v92TA ...
I've heard you say more than once, the hand is not a hammer. Makes me remember my dad telling me don't beat those hubcaps on with your fist son, that's what we have a rubber hammer for.. I remember that every time I look at my knuckles and feel the pain.
I rebuild Two Stroke Detroits and people say that I can't stop them from bleeding and I say, I can, watching these gentlemen install the pistons from the BOTTOM of the cylinders is how to stop the piston rings from cracking or breaking. I'd LOVE to work with these guys
Thank you Scott for your reply about cost of things I’ve been watching your show many years you’ve always replied that this is totally awesome I just can’t wait for the mini more years to come the shop is awesome and your idea of bus parking spots is really great
Love those 8V92TT , I used to install those all the time in the old days at Wagner Mining Equipment Co in ST-8B LHD’s and MT-444 mine trucks, they just purrrrrrrr👍👍
Hey Scott I don't know if you've ever used the Rust-Oleum version of naval jelly, but especially for surface rust it does a phenomenal job. You can also get it in a container that allows you to stick everything in a bath and again it does a phenomenal job if you've never used it.
Those ol' DD 2 strokes fascinate me. I have an 8v92T DDEC in my '93 Newell. It amazes me how so many close tolerance parts are assembled to produce a power plant that will run for 200k plus!!! I enjoyed watching this video. Geat job BGM!
Having built many of these engines I always found that getting new liner shims under the liners keeps them real close for protrusion. I always aimed for .046 as it gave the head gasket a good crush on the head.Looks like you did a good job on this engine
@@adamromanak7605 crush means the gasket that sits on top of liner that the piston rides in allows a tich seal between the cylinder head and the sealing of the combustion chamber on top of the piston. Remeber these engines fun at around 17:1 compression ratio and you definatel want to keep the combustion gases in the cylinder. Ok?
DD Guild memeber in the day, certified for all series; my fave, 12V-71 in an Astro. Straight pipe glorious noise; we had our drivers comment on the exhaust note when climbing a long hill outside of town, to know if our tune-up or overhaul was top notch. Still have my 60 Series accreditation framed and posted in my shed.
@@safetyvideos9866... Other than several of GM's own Detroit Diesels (6-71 as the base engine, the 8-71 & the v12 which was dropped in 1978 for the Astro), before the 1977 model year, no other diesel brands were ever an option. 1977 opened power options for Cat. with the 3406 PCTA (pre-cup head & injection system), as well as the Cummins KT450 which was the main reason for the enlargement of the radiator and corresponding larger front grill. So, the one that you saw with Cat power, had to be 1977 or newer. Actually, Very few of the Astro 95's were ever ordered with Cat power until Cat re-headed the 3406 to DI/ Direct Injection, compared to the Cummins, and most of those were after 1980 when the Cummins NTC Series was added to the line up for power options in the Astro. The Chevy Titan COE was dropped from production in 1980, in fact that was the Chevrolet HD Divisions last year of producing HD class 7 & 8 trucks. GMC continued until 1987, when Volvo bought into the GMC HD division... then shut it down.
@@safetyvideos9866.... Hello and thanks for your reply. Possibly could have been a swap/repower... If, it was a model year Prior to 1977, but as I mentioned before, the Cat.3406A did become an available option with the 1977 model year, as well as the Cummins KT 450, though Very Few were ever ordered with the KT. Cummins NTC series were available as optional power as well, beginning in 1975 and was the most popular choice as an option... especially in the western states. The mid western. central and eastern states, as well as the eastern Provinces of Canada, favored the Detroits. Single drive axle units heavily favored the very reliable 6-71, and the early "twin screw" Astro (& Chevy Titan's) were the domain of the 8-71, and the V12 was a big favorite in Eastern Canada for pulling doubles with GVW's of up 118,000 lbs. Just as an aside, the GMC division had developed a turbine powered Astro 95 as well, but did not make it into actual production due to "insufficient fuel mileage".... which was pure "baloney", as they were getting nearly 40% better mileage in the semis, and the converted Greyhound buses, were getting 3 times better fuel mileage than the diesels were (8-71 Detroits of the era)... averaging 10 - 12 mpg, fully loaded, according to several people I knew who were associated with the development & testing programs at the time. It was "big oil" that got the turbine programs shut down for vehicular use through their lobbyists in DC... Not the lack of fuel mileage.
It's like going back in time with my grandpa. I'd love to have an old 8v71t Detroit in a cabover but there's no mechanic left around here to teach me how to work on one and a career in it would be a death sentence. Times change. Sucks but it is what it is. Out with the old in with the new. True Detroit diesel 2 stroke mechanics should get paid their worth
Good to hear you are trying to educating the young ones on. Don’t use your hands as hammer’s. I’m in my 60s now and have severe cramps And arthritis in my right hand from using it as a hammer for may years as a heavy vehicle mechanic 👨🔧
sounds like what was wrong with dad's new '79 silver 8v92TA in a Freightliner long nose. was in the shop for warranty work 48 times in 2 years. Mom and Dad are in their 70s now still talking about that motor. not all Detroit Silvers were bad. just ours.
Thanks Scott, ✌🏽😊 l am going over some of the vidio's that l missed, Huge fun for me to watch this, never saw the internals ov a Detroit before. I was so excited, it went by in like seconds, l would have liked to seen more, more details, like checking if the cylinders needed a shim or not? It would be nice to see that, this vidio could have been an hour? or two longer. Like what about the blower? Seals? Was it oiled? The scallops lubed for initial start and run in? just how much torque were the head bolts? If lm looking for a bus? What is the best engine for power? Best for longevity? Torque? I want a foot stomping, ground pounding powerhouse❕l want to drive 75 - 80 m.p.h. and have some, lots left for climbing those really long B.C. 🇨🇦 mountain grades. 👌🏻✌🏻🙋♂️🌤🇨🇦🖖.
Hi Gotta luv the swamp fox at 18:19 ,engine bay looks original . Is it the Tecumseh 16 hp single cyl ?? . Oh yes I own a Super Swamp fox which has 26 inch wheels . I believe this is the only difference .
This may be a dumb question, but would it help seal the heads better against oil leaks to use a non hardening sealer like High Tack on the perimeter seals instead of grease? I'm no Detroit guy, but I have built countless race engines from many manufacturers and have found that High Tack has been my best friend for many unconventional purposes lol.
As a kid, I would listen to the announcements at the station, one was Greyhound "Scenicruiser Service", and one was "Americruiser Service." One service stopped everywhere (and made for a looong ride), and the other service seemed like an "express bus" with fewer stops. Can anyone clarify? I always wondered if that was the case?
Ed Smith... The difference between the two "services" was actually the type of coaches used on particular routes. The "Scenicruiser" Service just meant that the GM PD 4501 would be used (considered by many to be the "most beautiful coach [bus] ever built). In case you're not familiar with the model designation, just do an online search for GM PD-4501. It was designed by Raymond Loewy who was a well known Industrial Designer, and who also designed Streamlined Steam Locomotive outer bodywork for the "Pennsy" RR in the 1930s & 40s for passenger service and hundreds of other well known companies of various industries. The "Americrusier" Service indicsted that the passengers would be riding in a MCI MC-12 coach.
Have you ever seen cracked roller retainers before? If rusty rockers weren't bad enough... They make long ended dead blow hammers which are specifically for installing pistons. One is $38 direct from Trusty-Cook.
I think I missed something. You were using a suction cup on the side of the piston. Why? Is the wrist pin O-ring sealed on the Detroit because it passes over the ports in the cylinder? That has to be it.
He did all the work. We have a Patreon deal where people can come here and use our specialty tools and just pay $140 per day fee. Normally a rebuild is around 10k labor 2-4k parts but you never know what issues you will run into. He had all his own parts from other engines he tore down and his liner kits were basically new with only 5k miles on them.
It's an 8-92T (or TA).... not sure of it's particular hp rating in this coach, but the 92 series V8's (with turbo(s), could range anywhere from 400 to over 800 hp (marine applications)... all depending on injectors (volume and flow rate characteristics... there are Many different ones), blower model and gear drive ratio, single or twin turbos, size thereof, whether "dry" or water cooled (marine). I have seen some 8-92's with the twin turbo kit (including matched injectors for the turbo size & air flow rates), in bus conversions (motor homes) that are rated to 520+/-.
