ZF Metal Pan

[Christikfa]

Hey all, Just dropped my built ZF 6r80 off last week for a check up and have received a call back letting me know that the clutches are hammered due to the sump getting hit and restricting oil flow so the box needs a rebuild with new clutches. Transmission builder told me that something has been hitting the sump which has caused it to bend and block the oil pick up which has now starved the box off oil and that’s why this issue has happen. The attached photo is what I got showing the bend, it was explained that the red circled area has a gap of 1-2cm and that should be flat across the pan. I’m very careful with my going over speed bumps but can definitely say it has scraped a few times, can anyone confirm if the gap his referencing should

Indeed be flat or if I have caused the issue. Ideally if someone had a sump and could replicate the photo would be perfect. If I have caused the issue that’s definitely on me but I just want to be sure what I’m being shown is correct.

 

[k31th]

If the pan isn't actually damaged on the outside, it sure as f*ck has not damaged it internally enough to starve it of oil... I'm sure somebody like @Puffwagon could take an equivalent photo or advise on that with his ZF stuff, but it seems like that's a bit of a dodgy assessment to me at first glance.

[Puffwagon]

My equivalent pan is attached to my car so I can't check the inside of it. I looked at a pan from a 6r80 and there is no gap at the sides like the picture.

 

Assuming the pan is stuffed;

 

If the box is still in the vehicle, I would chuck a new pan and filter at it and see if it comes good. The restricted flow may make the trans slip without hurting the clutches if it was driven gently. If it has seen hella slippage then it is likely a couple of clutch packs are burnt.

 

If they've already got it out and confirmed it has rooted clutches, it's just a matter of swapping clutches and possibly some steels. That is a conversation for the owner and the trans shop.

[Christikfa]

He told me the bottom of the pan has been smashed abit, I seen it before I handed it over and there was no clear dents however it could have been bent without me noticing to much.

Sorry should have mentioned it’s a 6hp26 and just converted to a 6r80, so In that case it might not be a 6r80 sump. The gearbox was slipping bad on the 3-4 change and when I took it back the pressures where upped in those gears, in that period the car was driven hard frequently as I was informed that it just needed more pressure. He mentioned now once it’s apart that due to this issue it would have just been masking the problem. I’ve attached a photo of the clutches sent to me and also a photo of the sump I’m running.

[Puffwagon]

That is a 6r80 pan, it's the same one I checked last night. It looks like yours has been used to jack the car up as there is only light marking in a uniform shape but a big dent. If it was from hitting something on the road you would expect more external damage.

 

Those clutches are stuffed unfortunately and they will need replacing. You can see faint lines across them but most are worn flat.

Edited 02/07/23 01:01 AM by Puffwagon

[Christikfa]

Should have mentioned, that’s just a photo of found online to show which sump it is, unfortunately I don’t have the sump as the box is at trans shop at the moment. The sump definitely had some external surface marks but I don’t have any photos of it. Without having another sump to compare the inside to its hard to know if it indeed is meant to be flat in those areas that he indicated, he did mention the pick up left a mark on the sump indicating it was pushed up far enough that it was flush on the pick up as per the photo attached.

[Puffwagon]

Here is a non bent pan.

 

[Christikfa]

You are an absolute champion, 100% proves I bent the sump, thanks heaps for that.