1.8t main bearings

[turbob5]

hello, I'm building a 1.8t engine and i'm installing the main bearings for the crank shaft, in the package I have 6 bearing with a slot for the oil and 4 that are smooth and 4 thrust bearings. ok i'll do my best to explain my dellima, the machine shop took my bearing so i have no referance how the bearing go on the caps. the block gets 5 bearings with the oil grooves self explanitory, the caps gets 4 smooth bearings. where does the other bearing go that has the oil groove? does it go on the number 3 cap that has the thrust bearings or do I have 1 too many bearings with the groove and it should be smooth?

[pac1085]

Yes, you use a bearing w/ the groove on both sides of the middle one(#3) with the thrust washers around it

[turbob5]

Hey, thanks for the info. It made total sence for the bearings to go that way I just wasn't 100% sure. By the way i'm new to this site and I must say it really kick's ass!!!

[pac1085]

Yeah, when you take the motor apart it has one smooth and one grooved bearing, but the aftermarket bearing kits ship with an extra grooved bearing and one less smooth for some reason. I asked the same question when assembling my motor and was told to put both grooved in #3. It has not caused any issues.

[317ssayzarc]

Yes, you use a bearing w/ the groove on both sides of the middle one(#3) with the thrust washers around it

This information is correct

[viceprp]

NeCrobump.

It goes on #4.

[BlueBoostedAudi]

NeCrobump.

It goes on #4.

Nope it goes on #3
I was also puzzled the first time I biult a 06A bottom end...
I double checked with a cpl shops.
If ur using it on cap4 maybe that could be part of the issuse why u keep melting#4 piston

[vrmm]

I hope it goes on 3! that's what I did. It also makes the most sense given that it's in the center.

[chris164935]

http://forums.vwvortex.com/showthrea...n-Bearing-Help

[viceprp]

I'm just making sure the right information is shared.

Thank you, Chris.

[Seerlah]

Not quite sure where you guys are ordering your bearings from or this is an 058 issue, but I swear I did not have this complication or confusion with my build. Bearings I picked up were OEM from MJM before they had bad rep. Either I received different types of bearings, it's an 058 specific question, or...

[viceprp]

Mahle bearings.

[Kodymfk]

I hope it goes on 3! that's what I did. It also makes the most sense given that it's in the center.

I had the same issue with my machine shop! This answers one of my questions lol but i have one more. Is there any special way to place the 4 thrust bearings and where do they go in the crank? I couldn't find anything in my Bentley book that spoke on it. It looks like there are grooves that kind of fit them in but i'm not 100% sure and would like to confirm if possible.
Thanks in advance!

[Seerlah]

Thrust washers. They go on the sides of cap#3. Even though there are 4, only two will be used. Can't recall if it was on the crank or the cap, but you will see the grooves where they would seat.

[Kodymfk]

Thrust washers. They go on the sides of cap#3. Even though there are 4, only two will be used. Can't recall if it was on the crank or the cap, but you will see the grooves where they would seat.

I see the grooves. I could of swore there was 4 that I pulled out when I disassembled my engine. they were only along the caps, not the block. Like one on each times four (Disregard weird placement of 2 unless it's correct lol, I was test fitting to attempt to figure it out). Got the two accounted for though. Thanks! There isn't another spot for the other two then?

[Seerlah]

Maybe you should consult an expert, because those damn sure look like they can be placed in like that. I have an AWM and only used 2 with the tabs. I don't even recall there being a provision to place those other parts of the thrust bearing kit. Maybe same for 058 and 06A, but 058 used all 4 while 06A only uses the ones with the tab?

[M-Hood]

Pretty sure they go on either side of the #3 main cap, which is why it comes with 4 thrust bearings/washers.


You can always call up IE and ask, they build 1.8t motors.

[Kodymfk]

Pretty sure they go on either side of the #3 main cap, which is why it comes with 4 thrust bearings/washers.


You can always call up IE and ask, they build 1.8t motors.

That was the first I did, I called IE. They said "refer to the Bentley manual" lol. The Bentley manual has zero info on these.it has all of my torque specs, no thrust washer info.

[Kodymfk]

Maybe you should consult an expert, because those damn sure look like they can be placed in like that. I have an AWM and only used 2 with the tabs. I don't even recall there being a provision to place those other parts of the thrust bearing kit. Maybe same for 058 and 06A, but 058 used all 4 while 06A only uses the ones with the tab?

I agree. But I feel like they were placed on cap side when I removed them. Going to call machine shop and see if they have any info. They generally only have the basics (tolerances etc) but its worth a shot.

[Kodymfk]

Experts, that's why I posted on here! All the experts are on az. ;)

[Seerlah]

Haynes manual has specs you want for an engine build. Bentley is pretty useless here. When I built my engine, I only put it on the cap. I don't even think there was a provision on the block side for the 06a. But the 058 obviously seems to have a provision.

[Kodymfk]

Haynes manual has specs you want for an engine build. Bentley is pretty useless here. When I built my engine, I only put it on the cap. I don't even think there was a provision on the block side for the 06a. But the 058 obviously seems to have a provision.

I agree, Bentley manual is pretty useless aside from torque specs in this situation. Will have to look into a Haynes manual. Never heard of them. Thanks for the info!

[Seerlah]

They sell them at Autozone behind the counter. Not necessarily cheap (I would take a guess of roughly $50), but has all technical specs of the vehicle. Or you can just PM one of the 058 guys who built their engine. There are a couple of them.

[Kodymfk]

They sell them at Autozone behind the counter. Not necessarily cheap (I would take a guess of roughly $50), but has all technical specs of the vehicle. Or you can just PM one of the 058 guys who built their engine. There are a couple of them.

Just bought the haynes online version ($16). CORRECTION, he stated 4 at glance, got it apart and there is only 2.

[Kodymfk]

It looks like it would work lol. Only running the two on the cap.

[Seerlah]

What does haynes say about it? I only put into my block what I took out, and there was not 4. I still have my old bearings on my work table. I have my old block and was curious to see if there are grooves for it. But my outfit isn't dirty enough to take it out where I have it tucked (took the day off today). I'll check next time.

[BlueBoostedAudi]

I used two on each side of cap3

[Kodymfk]

What does haynes say about it? I only put into my block what I took out, and there was not 4. I still have my old bearings on my work table. I have my old block and was curious to see if there are grooves for it. But my outfit isn't dirty enough to take it out where I have it tucked (took the day off today). I'll check next time.

Haynes says some weird stuff about sliding it under towards block side etc. I ended up heading home and checking my donor engine stash. Confirmed there was two on the 06A block there along with machine shop guy checking one of the blocks I had there.

[Seerlah]

Meaning two on each side, or two in total (for the 06a)?

[Kodymfk]

Meaning two on each side, or two in total (for the 06a)?

Two total. Sorry about that.

[Blur2u]

Sorry to hijack the thread, but i have the same questions as Koedymfk and maybe a few more. I'm also in the process of putting a 06a block back together. The thrust bearing info was really helpful since i don't have my old ones. The machine shop took apart the crank from the block and threw away the old bearings. So Koedymfk the thrust bearings on a 06a only 2 go on the #3 cap? 1 on each side correct? No Thrust bearings on the block side?

Also for the experts, the IE rods tangs face the exhaust side of the engine or the intake side? I'm assuming they should all be oriented one way for all 4 cylinders. The 06a OE rods don't have tangs so not sure which side they go on for the IE ones.

This might sound stupid but i just want to make sure. I have JE pistons, the ring clocking is different from the OE ring clocking. I'm assuming i should use the clocking provided by the JE pistons correct?

Thanks!

[BlueBoostedAudi]

Rod tangs face intake side

[Blur2u]

Great! thanks BlueBoostedAudi!

[chris164935]

I used 4 thrust washers on my 06A motor and all the sets come with 4. Is there no provision to use 2 on the other side of the #3 main cap on your block? You keep showing pictures of just the one side... Also, I believe the grooves should face inward toward the cap. You want smooth sides facing the spinning crankshaft.

[Kodymfk]

I used 4 thrust washers on my 06A motor and all the sets come with 4. Is there no provision to use 2 on the other side of the #3 main cap on your block? You keep showing pictures of just the one side... Also, I believe the grooves should face inward toward the cap. You want smooth sides facing the spinning crankshaft.

Where did you place the second set? Like in picture? Pics? Also, you can't switch sides of the thrust washers. There is a groove that fits the thrust washer in a way that only allows you to place it one direction. Also, the Haynes manual stated to face it that way, not torwards cap, I couldn't turn the other way even if I wanted to, the groove is on the other side that will only allow this placement as well. I only found the two with the one tab in the spare parts bin of my other o6a motor which confirmed that there is some some with only 2 like the 058. I would of assumed they were pretty much the same on the bottom end. Also confirmed only two with a tab in the 058 block. I just assumed that this was a universal thrust washer set and only installed the two on the cap.
Can you explain in detail where you placed the the two, with the two inner tabs please? I only used the one with the single tab, not the one i crossed out. I put one on each side of the#3 cap.

[Kodymfk]

This is all haynes really states about it... Everyone says run 2, thought I saw 4. Have 2 in currently. Wouldn't be difficult to pop #3 cap off and try to slip in the other 2

[chris164935]

Sorry, I was mistaken about the grooves. But, here is a picture of my motor.


It's already assembled, but you can see the tangs from the top thrust washers. Below them are the bottom thrust washers as well though. Only motor that I know of for sure only uses 2 thrust washers is the first generation FSI motor. Those use only 2 bottom thrust washers.
Going back over your pictures, I can see it now. You definitely have the grooves for installing all 4 thrust washers.

EDIT: Yes, you'll slide them in with the crankshaft on or I think you can rest them in place and put the crankshaft in but it's easier doing the first method. I believe for the top thrust washers, we put them on the cap first and then installed the cap.

[Kodymfk]

Sorry, I was mistaken about the grooves. But, here is a picture of my motor.


It's already assembled, but you can see the tangs from the top thrust washers. Below them are the bottom thrust washers as well though. Only motor that I know of for sure only uses 2 thrust washers is the first generation FSI motor. Those use only 2 bottom thrust washers.
Going back over your pictures, I can see it now. You definitely have the grooves for installing all 4 thrust washers.

EDIT: Yes, you'll slide them in with the crankshaft on or I think you can rest them in place and put the crankshaft in but it's easier doing the first method. I believe for the top thrust washers, we put them on the cap first and then installed the cap.

Thanks bud! I appreciate the help. Have crank and rods in currently, I think i should be able to pull #3 cap and slip those in.

[Kodymfk]

Took me all of 3 minutes to add them. :)

[Blur2u]

lol this is so confusing, some use two and others use 4.

Here's another question for you guys, do you guys plastigauge using the old OE main bolts that you took off? or do you plastigauge using the new Main bolts but stop at the first torque spec and unbolt for readings?

Did you guys apply oil your main bolts before doing the final torque specs?