Hello everybody. I haven't posted in E39 section. Here are few pics on how to replace oil pan gasket on 6cyl cars. While overall job is pretty much straight forward, took me one weekend. This is my wifes wagon 200K miles.
I used harbor freight engine bar - about $60
http://www.harborfreight.com/1000-lb...bar-96524.html
Jack car up. Loosen engine mount nuts. Driver side and pass side. Remove oil sending line.
Install bar, connect chain to front engine lifting bracket:
IMG_7788.jpg
Boring - remove all 10mm oil pan bolts, do not forget 2 that are under tranny bell housing:
IMG_7790.jpg
Disconnect sway bar. Remove fan/belt, remove PS pulley, brake calipers, unbolt power steering fluid reservuar and let it hang. Put jack under subframe, remove 6 subframe bolts.
front-subframe.jpg
Lower jack, shake subframe:
IMG_7791.jpg
At some moment subframe will go down and be held by struts. Notice guides on front part of subframe. There's lots of clearance to remove pan:
IMG_7804.jpg
Use factory gasket
Put everything back. Enjoy no drips on the floor.
Oleg.
Last edited by perelet; 02-18-2021 at 03:17 PM.
Nice! There's something that really intimidates me about removing the subframe and supporting it with a jack.
This DIY is also useful for upgrading your front sway bar.
Nice job, good write up.
Exactly the same thing I did back in october and no drip at all. I see a good 7-8 quarts of oil when being drained.
I was more intimidated with engine bar holding things in place, but it did well. At some moment I had to shake/push subframe pretty hard to drop out of guides - no problemo, Harbor Freight bar held just fine.
Also pan should drop easily, if it is stuck in place - count all 10mm bolts
There are 21 short ones #5, 2 medium #6 and 2 long #7 in tranny bell-housing.
Oleg.
Pretty cool!
Amazing but simple write-up!
Thank you much!
1. Was the job hard?
2. Take a long time...?
3. Also, was the chain hook-up on the front of the engine the ONLY place used to hold-up the engine?
4. Did you need to lift the engine up any?
5. Where did you buy the gasket from?
Thanks!
Jason
Looking for an E39 belly pan , passenger front inner fender liner …
>1. Was the job hard?
Depends on your level, I guess. But there's no risk of breaking things or need for special tools.
>2. Take a long time...?
Weekend. But I spent time investigating this and that while doing it. My guess now I can do it much faster.
>3. Also, was the chain hook-up on the front of the engine the ONLY place used to hold->up the engine?
YUP. On other side it's supported by tranny mount, exhaust etc. Felt very stable.
>4. Did you need to lift the engine up any?
~1/4 in. Just to free up engine mounts.
>5. Where did you buy the gasket from?
dealer.
Oleg.
OP, did you apply a dab of the rtv gasket maker at four points/places on the block/crankcase? I applied two dabs on the place where the timing cover mates with the block and two on the rear as well. No rtv on the new gasket though and I wouldn't recommend it.
Auaq.
A bit of rtv at joints will not hurt. Factory gasket has very soft rubber molded on metal, plus it has extra rubber line (see pic above) at joint locations.
I do not think that absence of rtv will contribute to leak. Gasket leaks cause rubber part get's rock hard and just cracks here and there over time.
Oleg.
How long did it take for you to do this? I did mine on a lift and used three long transmission jack stands to support the subframe and one additional hydraulic transmission stand as well. It took me about 12-13 hours. I also unfastened the steering rack and the shaft column from the rack. I then unfastened the strut tower mounts, hanged the brake caliper away from the strut, and dropped the entire subframe with all the suspension components on it for a good couple of inches. I also had the power steering pump hanged to the side. I had to do this in order to drop the pan and slide it out towards the transmission or to the rear of the vehicle.
I am actually glad that you managed to drop the pan out, removed the old gasket and put the new one in there. I say this because I have seen some owners here on this site where they have actually cut the old and the new gasket simply because they cannot/unable to get the pan out completely. They then applied some of that rtv gasket at that cut point which in my view is not really a good idea.
Last edited by auaq; 05-01-2012 at 07:53 PM.
Oleg
you removed steering rack ?
you didnt say it but i can see from this picture
if so it's a HUGE job , > 12-13 hours
as CNN said the best way to do this job is to cut new gasket and do the easy way !!
Last edited by champaign777; 05-01-2012 at 09:00 PM.
Igor,
Check out this thread:
http://www.bimmerfest.com/forums/sho...=532166&page=4
Last edited by Jason5driver; 05-01-2012 at 10:44 PM.
Looking for an E39 belly pan , passenger front inner fender liner …
I wish this was around when I did mine. Dropping the subframe is the only way to do it right. Don't believe that you can easily change it otherwise. I tried to do it without dropping the subframe, and I spent 12 hours on my back, managed to get the gasket in after cutting it in 2 places, and then snapped literally the last bolt (the one that bolts the bell housing to the pan) on the reassembly.
Needless to say, it went to the shop the next day. Did you also have to drop the steering rack? Because we did on my '99 wagon.
This is a huge pain in the ass, and if you can manage it I would definitely take it to a good indy and let somebody else do it!
Nice write up!
Last edited by adjmcloon; 05-01-2012 at 11:41 PM.
Other cars that don't matter, and then..
'01 530i Sport/Premium/Cold Weather(My 1st love)
'02 540i Sport/Premium/Cold Weather (German bitch)
'06 330i Sport/Comfort (Sweetness!)
'08 535i/6 Sport/Premium/Comfort/Nav ()
'99 528i Sport Touring (Repaired the Previous owners garbage and let her go)
'02 525iT Premium/Nav/Cold Weather/Alpine/Supercherry
'90 325i e30 sedan schwarz (1st e30 project!)
'90 325is e30
'06 X5 4.4
'04 325i Sport
'04 330ci
'89 325IX 31k Original Miles!
'04 330i e46 coupe
'08 550i Sport
'13 535i Sport
'13 328i Luxury
'88 e30 Stroker
Champaign777, steering rack is in place here are additional pics:
You have to watch for steering shaft sliding out of guide while lowering subframe. Also you'll need to disconnect sway bar links.
Cutting gasket IMHO is one of silliest internet myths, I did read all threads before doing this. Cutting metal gasket and molded rubber is asking for drips on garage floor. Yes, it's a bit involy job, but not as hard as it may sound. Rebuilding rear suspension on E31 (see my other threads) is much more painful
PS. I used to live in CHampaign, IL.
Oleg.
Last edited by perelet; 05-01-2012 at 11:50 PM.
Again I just don't like the idea of cutting the gasket during removal and installation. Some are saying as why hassle to go and drop the entire subframe to remove the gasket when you can only cut it at certain places. Friends, let me just say this that you do not want to do this for a bloody second time. You do not want to see any more oil drops on the floor again. Do it once and do it the right way!
Last edited by auaq; 05-02-2012 at 07:57 AM.
Oleg,
The idea of cutting gasket + add RTV sealant came from my 1998 Volvo S/V70 oil pan. Volvo does not use the rubber gasket as BMW does.
In the 850, S/V70 series, Volvo used "liquid gasket" for the oil pan.
Yes, Volvo uses the "liquid gasket" for the entire oil pan edge!
The Volvo "liquid gasket" is basically similar to RTV.
Remember that for BMW E39 "gasket-cutting" trick, the RTV is used ONLY where the cuts are made, so the RTV patch covers only a small area such as 1/2" or less. Search bimmerfest forum for "mudbone" etc. Many have done it this way and have had no leak for 2-3 years.
I am not arguing with you, of course your way (dropping subframe) is the kosher (the correct) way, but it requires not only time (some 9-10h) but also:
- special tool (engine hoist or engine support as you used)
- alignment
etc.
The "gasket-cutting" technique is basically an improvised method that allows one to perform this job in 1-2h.
Life is choices, if one does like Option A then select Option B.
---------
FYI, below is the gasket-cutting thread, many have done it successfully.
Again, it is a matter of choice. Option A (the BMW way) does not mean it is better than Option B (cutting gasket).
Once you guys fix different car makes (such as BMW, Volvo, Honda, Toyota etc.) and learn how different mfg's design/fix their cars, then your view will change.
There is more than one way to do things.
http://www.bimmerfest.com/forums/sho...d.php?t=532166
Well,
You may as well go and ask the people who have done it this way, nobody has had a leak that I know of.
(I sent these people PMs and all of them are happy with this trick).
Last edited by cnn; 05-02-2012 at 08:09 AM. Reason: Automerged Doublepost
I asked my local BMW mechanic about cutting the oil pan gasket...
He replied, no, do not do that...
Looking for an E39 belly pan , passenger front inner fender liner …
CNN, I understand your point; however, I have heard about 'leaking again' even after oil pan gasket replacement. Now, if it is leaking again does not mean that it is due to the way it was done on the first try. There may be other reasons as to why it is leaking again such as untouched or ineffective ccv or osv (which ever you may like) and the hoses as well. I have said this in another post about a similar thread like this. My point was that do it once and do it the right way. You do not want to go buy the same parts again, get or rent all the tools or send it back to the mechanic who did it for you and pay that hefty sum of money all over again. If BMW says not to do it then do it. Other things can be done in other ways, but sometimes they aren't.
Also, friends please try not to derogorate whatever the technicians at the dealerships says as they know perhaps better than us because they have the ability to talk straight tech online with the engineers, have better technical sources than anyone of us has.
Last edited by auaq; 05-02-2012 at 12:04 PM.
even it will leak spend 1-2h is ok but spend full weekend on your back is NOT ok
ask me how i know ... I dont want to think even about any suspension job on my cars anymore ...
also i used RTV on a transmission pan gasket , on oil filter gasket and on a Vanos job where BMW clearly says to use RTV for VCG
0 issues , if it will leak but not on place where you used RTV
Last edited by champaign777; 02-24-2013 at 07:59 PM.
For easy installation to keep gasket on the place and prevent any movement
Last edited by champaign777; 05-02-2012 at 11:01 PM.
Did this last weekend. Biggest pain ever -- 12+ hours. But it is done, and not leaking (for now).
One thing that's worth mentioning that will cut down some of time/pain:
1st drop suspension and then unbolt 10mm pan bolts.
Originally I did it reverse and spend lots of time with reaching some of the bolts while suspension was still in place. I guess I was too intimidated dropping suspension and holding engine by the bar, so I left it for last. Be confident and drop it 1st
Oleg.
I'm about to do this job on an M52TU 528 and have a couple of questions.
1/. How far do you need to lower the subframe to provide enough clearance to remove the oil pan as it has to clear the pump and pickup etc?
2/. It doesn't appear that it is necessary to disconnect the steering rack from the steering column even though the TIS says to do this.
Perelet warns about not allowing the sliding part of the column to disconnect. So how much movement of the column sliding joint can take place before it separates?
I will have the car on a hoist so access underneath is not a problem as I'm past crawling under and lying on my back with oil and dirt falling on my face etc. Any other advice appreciated.
Regards
RonR
Melbourne
Australia
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