Then tighten the bolts in between the corner bolts working toward the center. I'm without a torque wrench at this point and just going by feel trying to tighten up the bolts. Some pans are steel, some aluminum. Working on an 04 tahoe 5. I highlighted all of the information and right clicked to copy it, then opened up an Excel spreadsheet and pasted it in Excel.
Any help would be appreciated? The new oil pans are made of aluminum, with a steel bolt and those aluminum threads will strip a lot quicker than the old iron pans. I removed and replaced the oil pan gasket. From 18 ft-lbs on all bolts to 106 in-lbs on rear cover bolts and 18 ft-lbs on all others. Tighten them all as much as you can by hand. This oil pan has the filter going through it. It may be that I have a rear-seal leak, but it's hard to tell for sure.
First off — I think this is very important to prevent thread damage and leaks — I always use a new gasket. Then tighten the middle section. It still could be your seal though too. Did the gasket and a couple weeks later I get a call saying that it's leaking oil and she has no oil left. You should always consult the manufacturer's recommendations as to the proper torque to use on oil pan bolts. Done so for 45++ years. The part of the gasket that seals those ports are only attached to the rest of the gasket by rubber!!! Before tightening anything, install all bolts finger tight, to ensure that they are not cross threaded.
I can tell u that it is not leaking from the top of the motor. Leak was at the rear side above oil filter. A drain plug looks like a bolt, but it is not a fastener. This only effected a very limited few, just remember the service bulletin when I worked at the dealer. I am search the net and get different settings. If the oil pan is used as a jacking point this will occur. Finally, 2 large bolts don't know their size attaching oil pan to xmsn bell housing.
But every 2-3 days the drivers side bolt on the tranny has a full drop on it, along with some leaking from the center hole in the tranny housing. Which bolts are considered the rear cover bolts??? If corners near crank ends have larger fasteners, you can tighten them a bit more than on siderails. It's different for the different bolts. Use of a professional mechanic is suggested if you do not feel comfortable with the instructions. There's about 12 M8 bolts that attach the pan to lower eng block. I was, after all, young and strong once.
Get a new felpro gasket. Any help would be appreciated? Some engines torque all oil pan bolts identically. Always make sure the the old gasket is clear lol. I looked for anything that I might have forgot to tighten and all is good. And I always replace aluminum sealing washers with new ones. Now it's Sunday and I'm at wits end. I was carful to make sure that the felpro gasket was aligned properly and that the pan was flush against the bell housing prior to tightening.
Your other point about not knowing the preexisting condition of the threads is always a danger. It is a plug used to retain fluid. I'm just trying to confirm the torque spec for the two longer bolts 6mm, 10. I finally had to carefully grind new lands into the head and that did the trick. Ok, I have to chime in on this one.
Once you get it there you can organize, modify or do whatever you want with it. Did you ever resolve your oil pan leak in the rear bell-housing area? I was carful to make sure that the felpro gasket was aligned properly and that the pan was flush against the bell housing prior to tightening. I'll see if I can borrow a friends lift; don't want to wrestle with the pulling the trany working from the the ground. I can still see it leaking there with a uv light and dye in oil. Continue tightening until all the bolts are half torqued.
For my own Corolla, just a few years newer than yours, I can tell you how I do it, never had a problem damaging the threads on the drain plug or oil pan. As I get the first ring out the whole piece drops from the block. My pan is now leaking and I was told it may be the rear cover. It still could be your seal though too. I'm trying to find the correct torque setting for the bolts. I do no have any leaks from above the filter.