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Oil tube and engine mount interference

nohoflyer

Well Known Member
Patron
My engine (io 360) is mounted. When trying to screw in the oil filling tube won’t go into the engine due to the mount. I need about 5-10 degrees of an offset to get the tube in.

I would imagine others had this issue too.
 
My engine (io 360) is mounted. When trying to screw in the oil filling tube won’t go into the engine due to the mount. I need about 5-10 degrees of an offset to get the tube in.

I would imagine others had this issue too.
any pictures?
 
Your dipstick tube may be the wrong size..... too long.

If you need to shorten the dipstick, it is pressed into the threaded top. If you shorten it, drill & pin it to the top.
 
Can’t tell from your photo if the bottom spacer washers are installed between the engine and isolators.

Have you removed the red cap and actually tried to thread it in?

BTW, don’t install it until after the #3 cyl baffle is final installed.
 
Well something isn't right. That tube should just screw right in. If the angle isn't right to get it started, it won't be right after it's threaded in. Try it with the dipstick removed.

Just to clarify about the isolators. Each matched set has a hard one and a soft one. The hard ones go on the aft side on top and the forward side on the bottom. and yeah, you've gotta get the washers in the right spot.
 
Your signature says you're building an RV-7A, but your comment says you used the RV-14 plans. The theory on the two engine mounts is similar as far as the hardness of the mounts, but I'm wondering why the difference? Or did I misunderstand something?

I've had my dipstick in and out several times on my RV-7, and I don't recall it hitting the engine mount.
 
Obviously need a better photo of the isolator assembly, but it appears you have two soft mounts here. The upper aft isolator should be a hard one with the "crease" in the middle.

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My engine (io 360) is mounted. When trying to screw in the oil filling tube won’t go into the engine due to the mount. I need about 5-10 degrees of an offset to get the tube in.

I would imagine others had this issue too.
I thought I had the same issue but the tube just wanted to screw in crooked/cross-threaded. It took a few attempts but once I got it straight it had enough clearance.
 
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