transfer case

Locktite 518 works for me...

 

Same for me -- except that's Loctite 518 (for better search results)

 

On the subject of transfer cases, does it really only require about 1/3 cup of gear oil, and if so.... how many of those drips before you need to be concerned?

What's a good way to make sure you've always got enough but not too much gear oil in the transfer case?

 

Funny...Steve. Maybe that's why I have trouble find the stuff when I do a web search? I just can't "spell" the stuff, even though I've been using Loctite/Locktite products for nearly 30 years.

Thanks,
David

 

Robert,

Much has been posted on the subject...and the best way to ensure that the transfer case has enough oil, is to fill the transaxle through the hole on top of the transfer case...whilst leaving the transaxle "fill hole" plug out. When both the transfer case and the transaxle housing have the correct amounts of oil (they are "connected" internally), excess oil will drip from the "fill hole". The vehicle should be level when doing this service.

Best,
David

 

I think his question isn't so much when filling the tranfer case, but in normal running. If you have a drip form the transfer gears will it eventually drain the oil from the transfer gears or is that portion of the transaxle refilled during normal operation of the car somehow?

If I put Redline in my gearbox and Royal Purple in the transfer gears, after 1000 miles would I have a mixture of both in both sections?

 

Fortunately, the latter. When the gearbox is in use, the lubricant spray/splash inside is like being inside a dishwasher - the stuff goes everywhere - even uphill. So a leak of a few drips is replenished with use via the same path it overflows into the main reservoir. You don't want to leave the transfer gear reservoir completely empty, and then wait for it to fill up from use (hence the spec to put a minimum of ~100 grams/0.17 pints in at changes), but, unless the leak is really, really big, it will be OK.
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Yes, in even fewer miles probably.

 

Drips from the upper transfer gears should mostly end up in the bottom of the transfer case which is below the main shaft. However, anything dripping onto the main shaft from either the tranny gears, or the drop gears could be slung off into either case.

You'll slowly get a mixture if you've got the tranny level correct as there's an oil passageway between the tranny sump & the transfer case around the tranny main shaft.

As the oil level in the transfer case drops due to your leaks, it will be partially replaced from the tranny until the tranny level gets so low that the only cross flow will be due to oil coming off of the main shaft.

Either Loctite 515 or 518 can be used to seal the transfer case cover. It's a pretty easy job, just pull the wheel & wheel well liner & the transfer case is right in front of you. Pull the cover, thoroughly clean both surfaces. apply the sealant to the bell housing surface, slip the cover back on & torque it down. DO NOT put the sealant on the transfer case cover flange, if you do most likely you'll scrape it off with the stud ends as you try to slip it on(been there).

Refill the transfer case until the fluid drips out the tranny drain hole as fastradio described & you're done!

 

Thanks for the explanation guys. It makes a lot more sense to me now, and I would have never thought of filling the transmission via the transfer case. Thanks again.