Yep, and a good thing, too!

If this engine had an autotensioner, it probably would have been impossible to do anything to remediate the longer belt.

Since it has a spring, I might have come up with a hack here to make it work. I repeated the tensioning procedure, but first, I had a helper thread a heavy coat hanger tip down into the lower timing belt cover, to hook the spring.

I had them pull up pretty forcefully, to make the spring seem to exert several times more force than normal on the arm of the belt tensioner. Then, while they held it, I locked the tensioner bolt down.

Spun the engine through a couple of turns using the pulley bolt, and it keeps time. The loose flappy condition of the belt is no longer visible. It seems to vary between tight and very tight.

Just started and ran the car. At low revs it sounds perfect. The distributor rattle is completely gone. I will post updates when I can run the car harder. Right now, I'm missing one of the valve cover nut gaskets. I forgot to take them all off before the last time I flipped the cover back, and I lost one unfindably down the back of the engine compartment -- grrrrrrrrrr, hate it when that happens. So I don't want to run up the oil pressure with the cover only partly held down.

Anyway, this confusion of the GSR belt with the Type-R belt seems to be pretty common. I pulled up ebay and searched for GSR belts. Didn't find anything in the active acutions. Searched completed auctions, and there were a couple of listings for "factory GSR timing belt" or similar wording.

One of those ads for a "GSR belt" had a photo of the belt in its bag with the label, and the label says 14400-P72-014. Wait a minute, that's the Type R belt!

Also, if you go to acuraautomotiveparts.org, and use their car-specific search to find a GSR belt for any GSR 96-01, it returns SKU #8676, BELT (126RU26).

Try looking up the belt for a 97-01 Type R with the car-specific search, and it comes back with the same thing, SKU #8676, BELT (126RU26).

If you plug in the factory part code 14400-P72-014 for the Type R belt, yet again, you will get the same SKU #8676, BELT (126RU26).

But if you put in the slightly different factory part code for the GSR belt (14400-P72-004), it returns SKU #8675! They are different parts! The 126RU26 shows up the same on both belts -- horribly bad information design by Honda employees.

That one inconsistency has just cost me over a month of sweating and scratching my head and disassembling the car over and over again.