CPMA Engine Rebuild Parts List

[MyDimeIsUp]

I'm hoping to do an engine rebuild this summer with my grandfather since I'm at 140,000 miles. I need to replace my timing chain (-4.39 on the 9th notch) and also have oil burning (1 quart ~1,500 - 1,700). I saw this (https://docs.google.com/spreadsheets...#gid=790763898) posted by another member but it is for a CAEB engine. I'm wondering if anyone who has rebuilt their CPMA/B has a master list of everything they had to buy. Very much would be appreciated

[Zuzuwu]

I did pistons and chain on my cpma last year. All i bought was the updated oem pistons, chain kit, gasket kit, head bolts. I had the injectors cleaned and replaced the turbo with a k04 as well. I didn’t replace anything in the bottom end, the rod bearings looked healthy, didn’t see a reason to replace parts that aren’t failure prone and are still in good shape. Get an oem rear main seal as well.


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[Zuzuwu]

Make sure you buy the tool to take the cams out. I didn’t know it was a special tool, i used a brake cube that worked but u would’ve rather had the right tool


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[MyDimeIsUp]

Ok I'll check for that cam tool. I know about the cam holder for the timing but must be a different tool. I'm mainly looking because this is an aluminum block and I imagine there are more torque-to-yield bolts that I am aware of.

[Zuzuwu]

Ok I'll check for that cam tool. I know about the cam holder for the timing but must be a different tool. I'm mainly looking because this is an aluminum block and I imagine there are more torque-to-yield bolts that I am aware of.

I don’t know of any other than the head bolts and probably the rod bolts. I didn’t think about the rods bolts being tty until i was torquing them down and it was too late to find replacements lol. The majority of the engine is 5mm bolts which can be reused. These engines are surprisingly simple. There’s really nothing funky about them other than the valvelift system and the cam tool you need. I didn’t need the cam holder, the timing went together without issue.


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[MyDimeIsUp]

Ok that sounds great. I was wondering where the 23mm pistons and where you you all sourced them. I saw these on eBay and heard about some of them actually being genuine Kolbennschmidt (other 21mms were confrimed by Kolbenschmidt themselves) but of course its probably better to get them from a reputable store/distributor. https://ebay.to/2ROs8uK is what I'm looking at

[Theiceman]

Ok I'll check for that cam tool. I know about the cam holder for the timing but must be a different tool. I'm mainly looking because this is an aluminum block and I imagine there are more torque-to-yield bolts that I am aware of.

aluminum block ?? i dont think so , its a iron block aluminum heads.

also there is no special tool to take the cams out. You may be talking about the spool valve.

Timing tool kits can be bought very reasonably that should have just about everything you need.

just make sure you have the tool to hold the damper while you loosen the crank bolt, and the set that includes all the other timing tools.

I rebuilt a CAED engine and it has some parts and part numbers. you can look that over to give you an idea of what is involved .

https://www.audizine.com/forum/showt...engine+refresh

its not a bible by any means but should give you some clues and ideas

[MyDimeIsUp]

aluminum block ?? i dont think so , its a iron block aluminum heads.

also there is no special tool to take the cams out. You may be talking about the spool valve.

Timing tool kits can be bought very reasonably that should have just about everything you need.

just make sure you have the tool to hold the damper while you loosen the crank bolt, and the set that includes all the other timing tools.

I rebuilt a CAED engine and it has some parts and part numbers. you can look that over to give you an idea of what is involved .

https://www.audizine.com/forum/showt...engine+refresh

its not a bible by any means but should give you some clues and ideas

Thanks yeah I mixed up I knew it was an iron block but I was thinking of the head bolts while typing. I never recalled seeing a special tool to take the cams out like Zuzuwu but I thought I'd look up because maybe I missed it or never heard of it. All I knew was the cam holder which screws in and holds the cam gear from spinning. I'll definitely look at you're thread. Are the CAEDs much different other than fuel delivery and intake manifolds? They still use 23mm rods and stuff right? Also I haven't looked at the thread yet but guessing you used a Febi kit? If so from where?

[Theiceman]

No I rebuilt with 100% original equipment audi parts.
Not sure about engine compatibility. Smac is your man for that kind of info.

Id you're not in a hurry, don't order parts until you tear it down and see what you need.

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[Smac770]

2013 allroad would be CPMA. As for a compiled list of parts to do a rebuild, not something I've done. Would take a lot of time going through all the manuals and determining all the parts that are replace if removed and compiling all the part numbers and checking for supersessions. So yeah, .... But if we start with that list, first point is it's a 2012 so B8.0. Second, it's a CAE, not a CPM. Third, that list isn't organized at all by part catalog page, what a pita. Anyway, I'll parse through it but probably be this weekend.

The change from 21mm to 23mm appears to have been May 30 '11, so any MY12 and later would be on 23. The head is different for CAE vs CPM, different valve seat, different mounting rods for the manifold, different exhaust valves and exhaust cam, etc.

That list is also a bit odd. There's no point replacing either chain tensioner unless they are old versions. They are not a wear item. etc.

[MyDimeIsUp]

My engine was built 09/25/2012. What timing chain kit should I use? ECS has like 6 and FCPEuro I’m not sure. Also are you sure about not replacing the tensioner? Smac I know you are the best guy on this forum here but it kinda worries me. That thing is constantly getting and losing oil pressure and is pushing plastic with a chain spinning on it for more than 7 years and 140k miles. IMO the 60 would be worth the peace of mind.

[Zuzuwu]

aluminum block ?? i dont think so , its a iron block aluminum heads.

also there is no special tool to take the cams out. You may be talking about the spool valve.

There’s an oil control valve that threads into the end of the intake cam and requires a two pin tool to remove it CTA Tools 1032 Camshaft Adjusting Socket Set (3-Piece). - Compatible with VW/Audi https://www.amazon.com/dp/B01LEXSMYW...4XQDF8KSQ9CZXG


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[Zuzuwu]

My engine was built 09/25/2012. What timing chain kit should I use? ECS has like 6 and FCPEuro I’m not sure. Also are you sure about not replacing the tensioner? Smac I know you are the best guy on this forum here but it kinda worries me. That thing is constantly getting and losing oil pressure and is pushing plastic with a chain spinning on it for more than 7 years and 140k miles. IMO the 60 would be worth the peace of mind.

The febi kit is nice. Replace everything, tensioner, guides, everything. Do not reuse timing components. Go with the mahle gasket set. Get oem updated pistons, don’t risk it with the ebay ones they’re probably fake.


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[MyDimeIsUp]

There’s an oil control valve that threads into the end of the intake cam and requires a two pin tool to remove it CTA Tools 1032 Camshaft Adjusting Socket Set (3-Piece). - Compatible with VW/Audi https://www.amazon.com/dp/B01LEXSMYW...4XQDF8KSQ9CZXG


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Ahh ok. I knew about that tool but I was really confused. I've heard the spring inside can sometimes fail and lead to oil pressure issues. Thats part of the tools I need to buy

[Theiceman]

There’s an oil control valve that threads into the end of the intake cam and requires a two pin tool to remove it CTA Tools 1032 Camshaft Adjusting Socket Set (3-Piece). - Compatible with VW/Audi https://www.amazon.com/dp/B01LEXSMYW...4XQDF8KSQ9CZXG


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That's the spool valve and you actually take it off to remove the cam bracket.. there are three variations of it.

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[MyDimeIsUp]

Is it really necessary to replace the Cambridge? Also the only febi kit I'm finding is for CAEB, would you happen to have a link? Also whats the deal with these two timing chain guides? (06H109469AP vs 06K109469M) and (06H109469M vs 06K109469N) I remember NaptownTuner saying that you should use the most updated revision of these guides, yet ECS say that the guide is for 7/2/2013 and up? I don't see why it would make a difference since the chain just rides differently but thought I'd ask.

[Theiceman]

You don't have to replace the cam bridge. Just be careful removing it and you will find your broken screen lying against the head.

The guides are NOT superceeeded. Use the correct guide that came out of your car.
The lower balance shaft " D shaped " one only one will fit anyway. Use the correct one between the cams..

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[MyDimeIsUp]

You don't have to replace the cam bridge. Just be careful removing it and you will find your broken screen lying against the head.

The guides are NOT superceeeded. Use the correct guide that came out of your car.
The lower balance shaft " D shaped " one only one will fit anyway. Use the correct one between the cams..

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Intresting ok. Was the timing chain guide changed when they switched to CPMB? I thought CPMB only had an ECU upgrade for 220HP.

[Theiceman]

Not sure. That's why it's better to take it all apart and asses your needs before ordering any parts.

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[Smac770]

Been playing with that XLS list Dime linked. It's a bit of a mess. For example, it includes bolts for the coolant pump and the cam chain tensioner. ? None of that is replace if removed. Nor is any of the timing components; I presume he intended to do the timing job while he was at it. But if the task goal is simply piston replacement, as the dealership did when they did mine, all the timing components that came off went back on. Except the old style tensioner. But kind of hard to work out a part list without a specific task sequence to determine what is necessary. If you're simply replacing pistons and timing, there's no need to even dismount the cooling pump. But are you also replacing the cooling pump? Etc., etc.