Timing / Manual

[calebtbay]

How’s this timing look? I think it looks good. Should I be able to squish the middle tensioner with my hand? Top chains seem a little loose. What would be good to keep? What must be replaced?

I found more little bits of what I think is valve cover paint in the oil pickup screen. Kinda feels like plastic.

I need to get the heads off. Should I leave the adjusters on the ends of the cams and undo the sprocket that drives the cam chain in order to get the chain off?

All data DIY just got me for $50. They have 3 TSBs and a piston diagram they are calling a shop manual.

I need the actual shop manual. Is emanualonline (not emanualSonline) going to give me the same laughably incomplete “manual”? Its only 250MB. Im afraid Im about to waste another $30. Im to the point where I MUST have to manual.

[Rol-co]

How many miles? Seems like the bottom one is cracked?

Maybe you should take the youtube video of JHM instead of a manual.
https://www.google.nl/url?sa=t&rct=j...TeKvD1cEJ7JqDT

[calebtbay]

How many miles? Seems like the bottom one is cracked?

Maybe you should take the youtube video of JHM instead of a manual.
https://www.google.nl/url?sa=t&rct=j...TeKvD1cEJ7JqDT

Good eyes! It does look like the bottom one is cracked. If any are cracked I will probably replace them all.

It has 150,000 miles and supposedly 90,000 on the timing.


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[calebtbay]

It is very cracked. I can’t do anymore this weekend until I get the tool to hold the cams. Ill have to call JH to see what kit I need. $1500-6000. So many options!

In the JH video they turn the engine from the center of the harmonic balancer at the front. Mine is just a hole. At the flywheel end again just a hole. No way to easily spin the crank. I will need to spin the crank without the heads later. I lined up the cams from the top. Wont have the top when i need to spin to get pistons out. Am I missing something? Are they just jamming a hex in there?

[calebtbay]

Both of the screws on this top passenger side guide are loose. The cover might have been holding it in.

[All_Black_A4]

You can pick these up for fairly cheap. Some timing tool kits come with it as well. There's also one that bolts to the rear of the crank shaft.

https://www.amazon.ca/CTA-Tools-1412...20800244&psc=1


Oh, and if you've gone to all this trouble....and more by the sounds of it then replace all of the guides and tensioners. They might look good know but could fail in 6 months and you'll be back to square one. Not worth the hassle.

[Rol-co]

Yep, all the guide's for sure but also upgrade to Rs4 ones.
Check the adjusters also, open them to see if they are wallowed out.
Clean and check the solenoids.

Or this
https://amtuned.com/products/amtuned...-b6-b7-s4-4-2l

[calebtbay]

I think I am going to do the JH Intermediate Kit. This gets me new everything including updated hardened mechanical adjusters. Ill bet my adjusters are worn out. I will only have to reuse the chains and the electronic adjusters. Maybe I can somehow test my electric adjusters once I have them off.

I ordered the timing tool kit from ECS. JH wants $350, FCP $140, I don’t like ECS but I got it while it was on sale for $75. Ill probably get the wrong tool 3 weeks from now. Or it says backordered for 3 years and never ships.

I will also need rings, bearings, head bolts, rod bolts, and a mile of gaskets before I get to putting timing back. Oh, and valve seals. Definitely doing valve seals. The backs of the valves actually look really good. Cam lobes look good. No sludge, no metal in the oil. The cats looked great. I guess we will see what the bearings look like. Hopefully the cylinder walls look OK.

[Rol-co]

Am tuned has the adjusters included too, and rs4 guides, and chains, solenoids (not electronic adjusters)

[calebtbay]

So my timing guides aren’t loose. It looks like they are designed to slide a little on the pins. The pins were tight.

I just put four of the balancer bolts back in and used the pry bar to spin it. I still find it odd I just have a hole while the engine in the video has a drive.

I think they didn’t replace the tensioners last time they did the timing. Two had broken off holes for the pins. They were way softer than JHMs but they might have had residual oil pressure. Mine make a sad gurgling noise and I can push them in with my hand.

Last time I took a set of heads to the machine shop I gave bare heads and all the valve train nicely sorted in plano boxes with labels. Well, they didn’t like that. Im just going to take him the assembled heads and the block. Am I going to be able to get the heads off without taking the cams out? It looks like I can but I don’t have a long triple square to get in the head so that stopped me for today. I ordered a set.

So the JHM timing video was great! But they are only doing the timing. I gotta do heads and bearings and rings. Any more videos?

When I take the heads off the sequence is outside to inside alternating sides typically in my experience. Is that the same sequence for this? It’s probably more complicated to torque the head back on but Im just removing right now.

[Rol-co]

Removing is removing, doesn't matter wich bolt first.

Are you going to sleeve the block? , bearings rings and no sleeve?, sleeve and new pistons would be at my list, bearings should be fine if you don't have engine noise.

[calebtbay]

Removing is removing, doesn't matter wich bolt first.

Are you going to sleeve the block? , bearings rings and no sleeve?, sleeve and new pistons would be at my list, bearings should be fine if you don't have engine noise.

I didn’t know about sleeves. I know its nicosil (probably spelled that wrong) lined and cannot be honed. I was going to swap the rings and hope for the best.

Never heard of sleeves for this engine. Didn’t know that was a thing.

[Rol-co]

I didn’t know about sleeves. I know its nicosil (probably spelled that wrong) lined and cannot be honed. I was going to swap the rings and hope for the best.

Never heard of sleeves for this engine. Didn’t know that was a thing.

Maybe you should look at this.
https://www.audizine.com/forum/showt...-Picture-Heavy

[calebtbay]

Maybe you should look at this.
https://www.audizine.com/forum/showt...-Picture-Heavy

That is truly impressive. That is some incredible dedication.

When I asked JHM about sleeves they acted like they didn’t know what I was talking about. When I google it all I get is information from 2016-18 about how it was experimental and not going so well.

I might pay for sleeves if it was easy. Its not easy. If I ruin this block the whole car is getting recycled. Im not doing forced induction. It just isn’t that fast by modern standards. I just want it back to what it was designed to be so after six years of owning it and letting it sit I can finally enjoy it.

I don’t understand how he got that turbo to fit there.

[calebtbay]

Well by god AM Tuned sleevin’ blocks just like its no big deal. It sure would be nice to take out the only catastrophic factor. About everything can be repaired, except the block.

[Nicksb6s4]

Keep in mind the top part of the chains near cam tensioners rely on oil pressure to be slack free


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[calebtbay]

Keep in mind the top part of the chains near cam tensioners rely on oil pressure to be slack free


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I want the sleeved block. They want $4000 for that. Redoing both heads $2000. Rebuild the whole engine for me with fresh parts and sleeves. $12000. It really puts into perspective how much this cost. It’s easier to swallow when you don’t see the full cost at the beginning.

I don’t have $12k for this car. Having them do it all for me is incredibly tempting. I think Ill just have them sleeve the block first. Once my credit card recovers Ill send the heads. Once my credit card recovers Ill get the timing. Im trying to figure out how much more that plan cost over just letting them do it all.

[RussAdams]

Looking good! Fun to see you resurrecting this beauty! Russ

[Jayz691]

Maybe you should look at this.
https://www.audizine.com/forum/showt...-Picture-Heavy

He sleeved it cuz its a boosted build, going for big power.

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[calebtbay]

I gave Alex two grand to redo the heads and another $500 for rings and bearings. My god this is expensive. Timing kit will be another two grand, I spent three grand on the JH clutch package. I need valve covers and the starter and alternator refreshed. Im going to be like thirty grand into this stupid car. It better be worth it.

[QIKRNU]

There are those of us that believe it is. Welcome to the brotherhood!

[CONative]

It will be worth it. I just got my Avant back on the road after nearly 16 months and it’s been pure joy ever since. Audi will never give us a V8 paired with a 6MT again.


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