R53 Transmission to Oil Pan Bolts
#1
09-03-2017, 09:03 PM
Join Date: Nov 2009
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R53 Transmission to Oil Pan Bolts
Hi everyone,
Long time no see, and I hope everyone's MINI is still going strong. I went to swap my oil pan gasket today, and everything went without a hitch until I started reassembling. I was able to torque all the smaller bolts that go from the ground up into the block, but I only wasn't able to torque the two bolts that go from transmission side to the oil pan. I set the torque wrench to spec, and they just keep turning with about equal resistance. I am not willing to keep trying to get the torque wrench to click for fear of stripping out those holes in the oil pan. Granted, they may already be stripped out. They are in there tight, I know there are plenty other bolts holding the assembly together.
So... The question is, do I keep trying to get them up to spec and strip them out? Afterwards, I'd either have to repair with a thread insert. Do I go with what I have right now and plan to do the work next time I have to do the clutch? Do I buy a new oil pan and R&R?
Any help is greatly appreciated. Thanks!
Adam
Long time no see, and I hope everyone's MINI is still going strong. I went to swap my oil pan gasket today, and everything went without a hitch until I started reassembling. I was able to torque all the smaller bolts that go from the ground up into the block, but I only wasn't able to torque the two bolts that go from transmission side to the oil pan. I set the torque wrench to spec, and they just keep turning with about equal resistance. I am not willing to keep trying to get the torque wrench to click for fear of stripping out those holes in the oil pan. Granted, they may already be stripped out. They are in there tight, I know there are plenty other bolts holding the assembly together.
So... The question is, do I keep trying to get them up to spec and strip them out? Afterwards, I'd either have to repair with a thread insert. Do I go with what I have right now and plan to do the work next time I have to do the clutch? Do I buy a new oil pan and R&R?
Any help is greatly appreciated. Thanks!
Adam
#2
09-04-2017, 03:47 AM
OVERDRIVE
Torquing bolts in aluminum is sometimes odd. I did a waterpump/timing chain for my brother on his Dodge Intrepid 2.7 engine. Had issues with some of the cam tower bolts. Similar, a couple would not torque, one broke. The bolts were special length and had to buy a 10 pack from Dodge but used 3 of them for putting the car back together.
I don't know if the oil in the receiving hole has something to do with it. Will see if some others chime in.
I don't know if the oil in the receiving hole has something to do with it. Will see if some others chime in.
#3
09-04-2017, 08:49 AM
Join Date: Nov 2009
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The bolts broke, not the aluminum threads??
Also, I'm kind of leaning towards inserts to strengthen the threads. I fly for a living, so I am not home the next few days. Does anyone know the thread pitch of the bolts? Part number:
Also, I'm kind of leaning towards inserts to strengthen the threads. I fly for a living, so I am not home the next few days. Does anyone know the thread pitch of the bolts? Part number:
07131172101
They are simply listed as M12x65. Not helpful BMW... haha. Thanks everyone.
#4
09-04-2017, 12:18 PM
OVERDRIVE