Upper oil tank mounts.

Just put the tank in a couple of weeks ago and already the mount has seperated. Seems like I saw where someone had suggested an alternative to the stock ones on here a while back but I can't recall the details.

C'mon, speak up. I wanna know also. Got one shot.

I was breaking them too, until I

1. added a firm support pad under the tank, having removed the bottom bolt
2. fettled (bent) the tank struts so that the bracket holes aligned much straighter with the corresponding holes on the frame, so there was less stress on the rubber mounts

htown16 said:

Just put the tank in a couple of weeks ago and already the mount has seperated. Seems like I saw where someone had suggested an alternative to the stock ones on here a while back but I can't recall the details.

Click to expand...

It's a Harley part of the same sort. Much more robust. I'm using them but have no idea where I got 'em.

I had one that shredded. I removed the oil tank at that time to weld up a crack
on the strut of the oil tank that attaches to the rubberized mount and attached
it with a new rubberized mount. I also installed a new bottom mounting bolt which
fell out after not too long. It has now been 12,000 miles and the rubberized
mounts are doing quite fine. It was a Norton part from a local vendor. Long ago.

Okay. At least I'm covered on those.. Thought there could be some magic involved. I found those HD ones on fleabay.

Harley Davidson part number 62563-65

Thanks T2 I ordered a set today.

Thank you for this post and information. Not sure if OEM vs. overseas vs. Hi-Whoop custom factor matters, but the price spread for these got me interested.

There is a bag full for $15.00, and for $9.98 you can purchase one - what? So I took a look at the "expensive" one and found this:

Heavy Duty Oil Tank Rubber Mount Isolator For Harley Davidson
Replaces OEM 62563-65
Part # RCP5132
1/4-20 threaded studs on both ends.
Sold Each
Works well for oil tanks, battery trays & other custom applications.

Better than OEM, these high quality rubber mount isolators conceal an internal wound spring that is welded to the inner plate ends. This equals a more dependable & durable product for nearly the same price as the inferior ones sold by most dealers.

Ebay - $10 for 5 each 62563-65

Nothing like a sharp photo of product to give an air of quality

I just replaced one top rubber mount on Als bike a member here with a exhaust rubber mount, first up I replaced the missing mount with a rubber mount off a Harley I am building as I just replace the Harley oil tank rubbers and had one left over but when doing up a nut on the frame the thread broke and couldn't use it but Al gave me 3 sets of rubber muffler mounts and all I did is drill the holes bigger to fit, the front rubber mount was still good and left it but the muffler mount will fit when needed, as for the bottom bolt there wasn't one there so left it free but it had a big tick rubber pad under it and I glued some rubber for the back of the oil tank where it was rubbing on something but with the muffler rubber mount inplace the tank sits perfect nice and tight.
So the stock muffler rubber mounts will fit the oil tank brakets with a bigger hole drilled, well better than one rubber mount at the front and cable tie at hte back holding the oil tank on and the reason the oil tank was rubbing on something, how long has it been like this, there was a bit of wear from rubbing on the back of the oil tank so must have been this way for sometime and its wasn't a big job to fix properly.

Ashley

What worked for me was after fitting new stock rubber mounts with as close to minimal strain on them as possible, wrapping some pliable rubber strip about 1/4 inch thick around the filler neck to locate it within the triangular section of the frame to work as another form of rubber mount. (a sheet of rubber under and behind the tank of an appropriate thickness was also fitted). The filler neck was the only attachment to the oil tank that had'nt failed on me. (yet).

When my newly installed stock rear mount quickly separated, I jammed a tapered rubber cork between the rear corner of the tank and the frame to stabilise the tank. It works loose after a couple hundred miles, so I'm thinking one of the possibly more permanent solutions posted above may be what I'll try next. It's a pretty good, half assed, temporary fix though!

So I was checking over my 74 yesterday and noticed the rear bracket had failed. The failure was not at the weld, but midway on the bracket.

I noticed that Andover Norton carries replacement brackets (06.2511). So is this a common occurrence? And if it is, apart from removing and welding a new bracket in place, what should I be looking at or for?

This is a well known fault you are lucky as most of the time it can cause a crack to the oil tank where it mounts and cause a oil leak, mine caused this problen in the first 8 months from new and was replaced under warranty, never done it again but then a few years later I converted my Commando to the Featherbed, a lot of people disuse the bottom mount altogether or reinforce this bracket.

Ashley

As Gort said, remove the lower mounting boss from the tank and install a rubber pad so the bottom of the tank rests on the pad. Also, remove the stock upper rubber mounts, enlarge the mounting holes to accept the same rubber mounts as are used on the mufflers and you will never have a problem again.