so might sound like a half ass fix, but really does it matter if the leak is stopped. I had an hour of spare time so I pressure washed the area, unbolted the PS pump, pushed it to the side, washed down the area ran a bead best I could down along the timing cover seam, bolted the pump back up.That was 3 months ago no leaks since.
When I bought my truck it was always wet with engine oil near the PS pump area,and would leave a drop or two. Years ago I was given this tip and I used it on 2 different dodge trucks, one I followed up on ( Friend who owned a courior truck 200,000 kms 4 years later no leak)Īnyway back to the Tacoma issue of a leaking cover and no time to remove cover to fix. There is only splash/spray of oil from the gears under the cover no pressure, so the external bead of RTV seals the leak indefinitely. If it’s the crank seal, you’ll be getting very intimate with your truck, and if it’s the timing cover, ya may as well change out the crank seal since it’ll be right there. They later stated that there is a special tool need to hold the lifters or something along those lines. It can be fixed easily if you wash down the area with brake clean and run a bead of Permatex "right stuff" along the seam of the cover. I’d clean off as best as you can to see where exactly it’s coming from. i took my truck to the dealer for diagnoses to find the leak coming from the timing plate so they say anyway.
#6.7 cummins timing cover leak plus
removing the cover to replace a gasket is time consuming (12 plus hours) and expensive, and given enough time it will leak again. On one vehicle, I had to replace the radiator - if that's something your currently doing it would be wise to go ahead and remove what is needed to check these bolts.I own a small automotive garage, and what they say is mostly true most mechanics don't have time to fix their own cars (at least the busy ones don't) Cummins 5.9 have an issue with timing cover gasket leaking oil near the water pump, as the bolt spacing is too far apart in that area, and the gasket breaks and a piece can fall out. Gets easier with repetition, as everything does. Update: : I have done several of these by now. I picked it up Friday and noticed oil spots. Noticed again last week and returned to the dealer, this time they changed the timing chain cover 3 more days for the repair.
Perhaps a dab of locktite on the bolts could prevent repeat repairs. Took my truck in 2/wks ago for an oil leak, they said it was the crankcase seal. The preventative tightening of the bolts anytime the front accessories have been disassembled could prevent future leaks on other vehicles. The amount of labor required to repeat the job if the seal did need replaced easily justifies the cost of a new seal upfront so it's better to be safe than sorry. In retrospect, tightening the bolts could have rectified the situation. While attempting to replace the seal, we noticed the bolts were loose causing the leak - we replaced the seal anyway. The vacuum-pump assembly is then unbolted and slid out of the timing cover. Upon removing the cooling fan drive assembly, we located the source of the oil leak to be the vacuum pump seal. Please follow those directions until step 8. I wrote an article covering the replacement of the water pump. The process of removal of all accessory drive components is somewhat of a hassle. This includes disconnecting the battery cables and any necessary hoses or wiring harnesses.
We started a tear down to determine the root cause and devise an approach to repair it. To replace the timing cover gasket on a 5.9 Cummins engine, first remove necessary components to gain access to the timing cover. Using florescent oil dyes, we made an assumption that it could be the front main seal. unidentified oil leak coming from the front cover of a 6.7L PowerStroke in a 2013.
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