Sealing the sump
Discussion
Just took the sump off because it was leaking, cleaned it all up and checked to see how flat it is, it looks like maybe the bolts have been over tightened as the area around the holes are higher than the main sealing surface, I put a straight edge on and measured between 0.2 to 0.4mm, is it worth flattening them down or will the seal / sealant deal with it?? What sealant is preferred if any and what size bead, 3mm ??, the last guy to do it obviously went way over the top and I have beads inside the sump about the thickness of a pencil.
It also looks like oil pressure sensor leaks a bit on the thread, I guess sealant is not a good idea as it looks like the sensor needs the earth connection through the thread, is that correct?
It also looks like oil pressure sensor leaks a bit on the thread, I guess sealant is not a good idea as it looks like the sensor needs the earth connection through the thread, is that correct?
https://www.turnerengineering.co.uk/Mobile/elring-...
This is as good as it gets, lay down a small bead, snug the bolts up until the sealant squashes out slightly and let it go off for several hours.
Final tighten when set.
This is as good as it gets, lay down a small bead, snug the bolts up until the sealant squashes out slightly and let it go off for several hours.
Final tighten when set.
Belle427 said:
https://www.turnerengineering.co.uk/Mobile/elring-...
This is as good as it gets, lay down a small bead, snug the bolts up until the sealant squashes out slightly and let it go off for several hours.
Final tighten when set.
This is how I was shown, mostly about just snugging the bolts up ( like that term ) This is as good as it gets, lay down a small bead, snug the bolts up until the sealant squashes out slightly and let it go off for several hours.
Final tighten when set.
then letting it go off a bit before nipping bolts. If you have time a really helpful trick is to put two studs into the sump replacing the bolts either side, when you offer up the sump you can locate it on those two studs which stops it’s sliding about when trying to put bolts in.
Silicone RTV is great stuff, have a car running on it with no drips after 10,000 miles
Yes definitely flatten out where the bolts have pulled it in, this was done before the Silicone RTV was applied, also no gasket used on my Peugeot sump, only Silicone RTV
PTFE tape will seal the sensor thread and very likely earth without problems if the sensor does need an earth as the male part of the thread will still make contact with the female part
Yes definitely flatten out where the bolts have pulled it in, this was done before the Silicone RTV was applied, also no gasket used on my Peugeot sump, only Silicone RTV
PTFE tape will seal the sensor thread and very likely earth without problems if the sensor does need an earth as the male part of the thread will still make contact with the female part
Edited by Penelope Stopit on Monday 30th December 12:58
Ok so I will go sealant only, and the stud idea is very good, just need to find what thread those bolts are?
While cleaning up underneath I found a load of stuff in the oil pick up tube
Would I be right to think that at the end of the pick up it should only be a gauze, no o ring or anything?, these parts look to be excess gasket and sealant.
Also while in the area I took a look at the fuse, alternator I think, I appear to have 2 installed in parallel?, need to take this apart tomorrow and investigate.
While cleaning up underneath I found a load of stuff in the oil pick up tube
Would I be right to think that at the end of the pick up it should only be a gauze, no o ring or anything?, these parts look to be excess gasket and sealant.
Also while in the area I took a look at the fuse, alternator I think, I appear to have 2 installed in parallel?, need to take this apart tomorrow and investigate.
I believe the threads are 5/16 unc, maybe someone can confirm.
Grub screws are a good idea as they are easy to get in/out if you just use them for alignment.
The excess black s h I t in the pick up is the result of too much sealant that squeezes out everywhere, the method above of only snugging the bolts up until it’s partially set is a good one as it minimises this.
Grub screws are a good idea as they are easy to get in/out if you just use them for alignment.
The excess black s h I t in the pick up is the result of too much sealant that squeezes out everywhere, the method above of only snugging the bolts up until it’s partially set is a good one as it minimises this.
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