Removing oil return AN fitting

crabandy · #1 10-16-2013, 03:39 PM

I noticed a little oil on my #4 intake tube and traced it to where the oil return AN fitting screws into the head. I'm having a little trouble removing it so I can put some sealer on the threads/replace the fitting. I removed the intake tube and primer port plug to try to get better access but no luck. Regular open end bottoms on the head and My cheaper 90 open end isn't strong enough. Not enough room to get a wrench on underneath until the fitting gets turn 1/4.

Any good ideas on tools to buy/make to get the AN fitting off?
Thanks,
Andy

skyking902001 · #2 10-16-2013, 04:16 PM

Andy, two suggestions. Hard to tell from the picture, but if there is clearance beneath the fitting, could you move the oil line aside and use a thin wall deep socket on the fitting? Another option might be to use a flare nut wrench. Good luck.

Steve

bret · #3 10-16-2013, 05:12 PM

Die grinder cut off wheel, cut the angle portion off, then use a square drive socket 8 point

crabandy · #4 10-16-2013, 06:29 PM

Steve, no clearance from the bottom and must be a 90 from the top.

Bret, that is my plan B! Tomorrow I was going to try an adjustable wench/vise grips on the flare side along with the 90 open end. Well see what happens.

aerhed · #5 10-16-2013, 06:57 PM

Bret's works. Vise grips really tight will usually crack them loose Too. The male flare will probably hit the adjacent cylinder fins though. That means you'll have to dremel a 1/4 inch or so off a fin or two.

skyking902001 · #6 10-16-2013, 08:02 PM

Opps, didn't realize that it was a 45 degree fitting. Cutting off with a dremel is probably best way to proceed.

Steve

airguy · #7 10-16-2013, 08:13 PM

Quote:

Originally Posted by aerhed

Bret's works. Vise grips really tight will usually crack them loose Too. The male flare will probably hit the adjacent cylinder fins though. That means you'll have to dremel a 1/4 inch or so off a fin or two.

That fitting went in there without dremeling the fins, it should come out the same way. I know I can remove that same fitting on my engine without issue.

aerhed · #8 10-16-2013, 09:51 PM

They go n when the cylinder is off. Not all casting will hit the fins, but a lot of them will.

crabandy · #9 10-17-2013, 08:32 AM

Adjustable wrench on the flare side along with the open end 90 was the hot ticket, came out without a fight. Glad I didn't have to resort to the die grinder and all the metal shavings and an open oil port.

gasman · #10 10-17-2013, 11:17 AM

Quote:

Originally Posted by crabandy

Adjustable wrench on the flare side along with the open end 90 was the hot ticket, came out without a fight. Glad I didn't have to resort to the die grinder and all the metal shavings and an open oil port.

Looks like this will work fine as long as you don't plan on using that fitting again.

I am sure your local shop would show you the proper wrench they use.