M62tu engine work

[Jean]

It's a known/common issue with these bmw v8s. The older M60 is dual row with sprocket.

Water pump is driven by a belt, you would re-design the whole front timing cover? LOL

[The Dark Side of Will]

Job security for their dealerships/technicians. If you build it to fail, it will... just look at how many crucial engine parts are made from plastic nowadays. You can't tell me that they engineer plastic thermostat housings to last 200k miles...

I'm with you... it's crazy the stuff that I see on a daily basis.

Lookin' good Jean...

Garey

The U-shaped guide *does* look kinda strange... I think I would have put an idler sprocket in that location and used it to drive the waterpump.

The Cadillac Northstar uses plastic chain guides backed up by aluminum castings, very similar to what's shown here. When the chain links are sliding across them, they wear. When the links wear deep enough grooves in them that the chain rollers start to touch the guides, they stop wearing and are good forever.

I've had a few Northstars apart and never had a guide break. I can't speak for M60's because I've never had any of them apart, but it sounds like this engine had some cracked guides. Not sure if BMW cheaped out on the material or what...

Here's the Northstar timing drive:



The guides are the green components.
All the chains are single row. I would feel more comfortable if they were dual row, or at least if the primary chain from the crank to the intermediate sprocket were dual row, but I've also never heard of a chain failure. This design is also very compact, which is what lets it fit transversely in a Fiero.

[Jean]

Does this sound like a lifter that hasn't yet fully gotten oil yet or something else?

Machine/engine shop took lifters apart to clean/rebuild when they worked on the heads, but this is my first rebuild m62 rebuld so I am new to this sound.



here is one from under the hood, but it's not as obvious here

[Jean]

Everything, almost, went as planned.

Went over all the bolts to make sure nothing was left behind. Re-tightened a few.
Filled up the engine with Mobil1 Synthetic 5w30, tranny is filled up with Redline MTL, got two gallons of BMW coolant.
BMW brake/clutch fluid, and some DexIII ATF for power steering.

Removing one of the two rear mufflers didn't make difference in sound, should have just removed the whole rear section lol.

Removing the CDV did make a big difference, clutch is now very sensitive, where before it had this artifical 'lag'.

No oil leaks so far, no coolant leaks from the engine either. The radiator/hose needs a new o-ring that I'll pick up tomorrow as it's leaking from the top radiator neck where the quick release radiator hose connects. FFFFFFuuuu

Engine started up on the first try, i forgot to tighten one vacuum line going to the throttlebody/intake manifold past the MAF so it made the idle go up/down/up/down.

Tomorrow/tuesday I'll get the o-ring on there and also get the car scanned for any codes and make sure all is okay. I think one of the lifters is loud, but haven't even really driven the car yet...

[Jean]

Alright, the 6speed tranny w/o oil is 110lbs. Starter isn't very heavy at all, maybe 10lbs.



Tranny installed and filled with redline mtl. New slave cylinder installed.
CDV removed.
Short shifter and new shifter hardware done.
Exhaust installed, and one of the rear muffler/silencers cut-off.
New ps line installed.









Rebuilt injectors arrived.
Tomorrow is going to be add oil/coolant/and do a bunch of wiring day.

[Jean]

Transmission input seal and power steering line here. Injectors in route.

Hopefully won't be any surprises or any complications this weekend.

[Jean]

Got all new shifter hardware installed, along with a new short shifter. Radiator/hoses/belts done.





PS return line is on order, along with 6speed input shaft seal (while you are in there type of thing).

Next weekend plan is to install the tranny with new fluid, install the rebult injectors (just got an email back that they are done), connect the driveshaft, install the exhaust and remove the rear silencer.

Sunday to wire the whole thing up and add oil/coolant/ps/brake fluids.

I need to remember to weight the 6speed and starter as well these go in the car.....

[bmwmech1]

... WTF were they thinking when they pulled that big U shaped guide out of their ass...

Job security for their dealerships/technicians. If you build it to fail, it will... just look at how many crucial engine parts are made from plastic nowadays. You can't tell me that they engineer plastic thermostat housings to last 200k miles...

I'm with you... it's crazy the stuff that I see on a daily basis.

Lookin' good Jean...

Garey

[Pinepig]

Its a shame the m62b44 is kinda a shitty motor, due to the timing chains guides...

I couldn't believe what I was looking at when he popped the front timing cover off, WTF were they thinking when they pulled that big U shaped guide out of their ass.
Stupidest piece of German engineering I've ever seen.

[moatilliatta]

Much easier with both manifolds off ;) I usually throw them on though before i finally set it down though..

Got a 4.4 setting on the bench at work for my e34 touring. It'll be sleeve and have m60 timing chain set up, obdI. Only want the motor apart once... While you got this apart you should do the bosch design III 19lb injector upgrade :)

Its a shame the m62b44 is kinda a shitty motor, due to the timing chains guides...

[Jean]

Left to do:

Install new short shifter/hardware - done
Install radiator/hoses - done
Install/mount the a/c compressor - done

Replace tranny fluid
Install the 6 tranny and new slave cyl.
Repair or replace res to ps pump power steering fluid line
Install engine harness and rebuilt fuel injectors.
Add oil/coolant/ps/brake fluids.

[Jean]

Alright, engine is in. Goes in from the top w/o manifolds, then you raise it up 25mm or so and do the manifolds (pita, but doable).

Waiting to get in the car



Did not want to deal with dropping the subframe on this, too many things to deal with vs. e30 subframe.



down it goes



in



exhaust manifolds added



yay

[bmwmech1]

... The upper bell-housing bolts are the biggest PITA. I solved that problem with a Snap-On internal torx box-end wrench.
-Bruce

That is the bonus of this motor in the E30 chassis... the flatter firewall allows access to these bolts from the top... Gearwrench makes an internal set as well, that's what I have. It's a good solution, though, no matter what the brand...

Garey

[BruceBe]

The S52 had a JB Racing flywheel and Clutchmasters organic kit. Donor M60 had an auto transmission flex plate when weighed.

I R&R the engine without the trans, and without manifolds, from the top. The upper bell-housing bolts are the biggest PITA. I solved that problem with a Snap-On internal torx box-end wrench.

-Bruce

[Jean]

Bruce, what flywheels were used on the s52 and m60? The one on m62tu is almost 40lb before clutch kit is added!

Also, how did you install the m60 in your e30, from the top with or w/o the transmission/manifolds? I was hoping to do it from the bottom, but learned it won't clear the chassis that way.