Oil Pan Torque Sequence????
04-28-2007, 01:13 PM
#2
The service manual doesn't require a torque sequence for the oil pan.
says to tighten the oil pan to block and oil pan to front cover bolts to 18 ftlb and the oil pan to rear bolts to 106 lbin<<<INCH pounds.
says to tighten the oil pan to block and oil pan to front cover bolts to 18 ftlb and the oil pan to rear bolts to 106 lbin<<<INCH pounds.
04-28-2007, 01:17 PM
#3
Le Mans Master
Thread Starter
Member Since: Sep 2000
Location: Clouds Over California
Posts: 6,857
Received 439 Likes
on
236 Posts
I guess I will just follow the ole inside to outside pattern with 18 ft lbs and 106 in lbs on the back...what does 106 inch lbs translate to in ft/lbs?
04-28-2007, 01:48 PM
#4
Race Director
I think you must do the front and rear covers first, but the rest can go in any order. I think that is to align everything correctly before you torque them down. If you do the main pan bolts first, then tight the front/rear, you could crack the pan if it is offset.
This is a quote from the manual:
1. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 25 N·m (18 lb ft).
2. Tighten the oil pan-to-rear cover bolts to 12 N·m (106 lb in).
3. Tighten the flywheel housing bolts to 50 N·m (37 lb ft).
This is a quote from the manual:
1. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 25 N·m (18 lb ft).
2. Tighten the oil pan-to-rear cover bolts to 12 N·m (106 lb in).
3. Tighten the flywheel housing bolts to 50 N·m (37 lb ft).
04-28-2007, 09:43 PM
#5
Le Mans Master
Thread Starter
Member Since: Sep 2000
Location: Clouds Over California
Posts: 6,857
Received 439 Likes
on
236 Posts
I think you must do the front and rear covers first, but the rest can go in any order. I think that is to align everything correctly before you torque them down. If you do the main pan bolts first, then tight the front/rear, you could crack the pan if it is offset.
This is a quote from the manual:
1. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 25 N·m (18 lb ft).
2. Tighten the oil pan-to-rear cover bolts to 12 N·m (106 lb in).
3. Tighten the flywheel housing bolts to 50 N·m (37 lb ft).
This is a quote from the manual:
1. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 25 N·m (18 lb ft).
2. Tighten the oil pan-to-rear cover bolts to 12 N·m (106 lb in).
3. Tighten the flywheel housing bolts to 50 N·m (37 lb ft).
06-13-2019, 08:31 PM
#6
I think you must do the front and rear covers first, but the rest can go in any order. I think that is to align everything correctly before you torque them down. If you do the main pan bolts first, then tight the front/rear, you could crack the pan if it is offset.
This is a quote from the manual:
1. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 25 N·m (18 lb ft).
2. Tighten the oil pan-to-rear cover bolts to 12 N·m (106 lb in).
3. Tighten the flywheel housing bolts to 50 N·m (37 lb ft).
This is a quote from the manual:
1. Tighten the oil pan-to-block and oil pan-to-oil pan front cover bolts to 25 N·m (18 lb ft).
2. Tighten the oil pan-to-rear cover bolts to 12 N·m (106 lb in).
3. Tighten the flywheel housing bolts to 50 N·m (37 lb ft).
06-13-2019, 08:50 PM
#7
This thread is from 2007.
18 lb-ft is a low torque number. You can exert 18 lb-ft fairly easily with a small wrench, even a quarter inch ratchet. It's basically "This is about as tight as I feel it'll go" with a quarter inch ratchet. Those bolts absolutely should not be snapping at 18 lb-ft. Really, pretty much no bolts on a car are gonna snap at 18 lb-ft ... What were you tightening it with?
18 lb-ft is a low torque number. You can exert 18 lb-ft fairly easily with a small wrench, even a quarter inch ratchet. It's basically "This is about as tight as I feel it'll go" with a quarter inch ratchet. Those bolts absolutely should not be snapping at 18 lb-ft. Really, pretty much no bolts on a car are gonna snap at 18 lb-ft ... What were you tightening it with?
06-13-2019, 09:14 PM
#8
Sorry for the thread necromancy, I used a 3/8 torque wrench that I used without any issues on upper pan. Its a sensitive higher end one. The lower pan bolts are smaller and finer thread than upper and now I gotta find an extractor small enough to get in there, gonna suck.
06-14-2019, 03:40 AM
#9
When I use a 3/8" torque wrench, 18 pounds feels like "eh it finally stopped spinning freely, let me kinda push it a little" sort of effort. Did you feel like you were putting in a lot of effort?
I'd probably reach for a 1/4" ratchet, snug all the bolts nice and good, then use a torque wrench to verify, expecting not very much more before it clicks. Of course a gasket compresses a little so I'd go over them for a second pass with the smaller ratchet to make sure they were all actually snug. If you felt like you were putting in effort ... and were worried about breaking a bolt (and in fact broke a bolt), I'm not sure that's 18 lb-ft. But I mean, I wasn't there, so who knows?
I'd probably reach for a 1/4" ratchet, snug all the bolts nice and good, then use a torque wrench to verify, expecting not very much more before it clicks. Of course a gasket compresses a little so I'd go over them for a second pass with the smaller ratchet to make sure they were all actually snug. If you felt like you were putting in effort ... and were worried about breaking a bolt (and in fact broke a bolt), I'm not sure that's 18 lb-ft. But I mean, I wasn't there, so who knows?
