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nissan720

oil pan leak

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$_57.JPG

 

 

You can buy them ready made from any auto supply store. Making your own is a wast of time and effort getting all the holes to line up. About $8

 

http://www.ebay.ca/itm/Engine-Oil-Pan-Gasket-fits-Datsun-L16-L18-L20B-Z20-Z22-Z24-1968-1989-/182334815737

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The biggest thing is don't overtighten the bolts .... the cork doesn't like that...

Even a good idea to make sure the gasket area on the pan is nice and flat too....

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Takes me longer than a minute to put it on. :lol:

I have had it take me a half hour to install a 521 L block oil pan, but I did it without removing any cross members except for dropping the steering assembly by un-bolting the idler arm, I didn't lift the engine either, I did it by dropping the pan as far as possible, then removing the oil pick up tube, then I could get the pan out, I had to reverse the procedure to install it, get the oil pan in there, and then without touching the gasket on the oil pan I had to re-install the oil pick up tube, then install the oil pan on the block.

I did this because I installed a L20b oil pan(620) into my 521 by accident and the steering assembly would not bolt back up into position as the oil pan was in the way.

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I coat both sides of the cork gasket with Permatex #1 non hardening sealant.  Works for my 50 year old original owner RL411!  And for my father.

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I don't think the car maker used it and it may be 'non hardening' but once on, that shit ain't coming off.

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I figure if I have to bend a corner of the steel pan to get a gasket scraper in there to remove the pan, but that means the pan won't leak, ever, then that's a price I'm willing to pay.

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It's also possible that the reservoir cap has a bad seal. I thought that my pan was leaking but found it was just that cap. Replaced with a copper crush washer. 

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sometimes its the oil sender leaking making it look like a oil pan gasket.

 

I replaced my cork gasket cause I overtorqed it and it split.

 

I loosen the engine mounts  and lifted the trans with a jack to get enough room to get past the oil sump(was a MOFO) but I did it w/o loosening the steering.

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An old-timer once told me to start with a can of "Arid" spray-on deodorant, and spray it from top to bottom on the engine.  Baby powder works too, but you have to make a bigger mess.  The powder will "wet" with oil, so you can see your leaks.  Clean the engine and repair leaks from the top down - you'll generally have less to repair if you follow these simple steps. 

All leaks will eventually look like they start from the oil pan or rear main seal.  

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That's good advice.

 

One method I use is to pressure wash the entire engine, from top to bottom, then with a clean canvas, watch what gets wet in the next few days/weeks.

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its my oil pan gasket.Should there be any type of sealant applied to the gasket?Or just skip gasket and use Permatex  Black ultra rtv?

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Skip the gasket and use the RTV in the link I posted above. Use only black or grey RTV, but the stuff I linked is by far, the strongest RTV for this application.

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I'll 2nd that the Permatex "Right Stuff" is exceptional.  No gasket - just a heavy bead and follow the directions on the bottle to the letter for timing.  DO NOT get any on the crank!!!.  

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Is that stuff good for water and or coolant as well?

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A gasket is going to fit and seal. Goo is ok if you know what you're doing, and the engine is out on a stand, but too little doesn't work and too much can squeeze out into the pan and float around. And iot's messy. Nissan didn't use it when they put your engine together. I cannot see one advantage to it unless Sunday and the store is closed..

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Can't see the benefit? How about no leaks...ever.

 

Gaskets crush and bolts gets loose causing leaks.

 

Move into the 21st century and ditch the old gasket in favor of the right stuff.

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Is the engine in the vehicle?

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I could see where cork gaskets still serve its purpose for valve covers..

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I could see where cork gaskets still serve its purpose for valve covers..

Considering you need to remove the valve cover from time to time, I would not use RTV on a valve cover.

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