What is thread size two little holes on crankshaft pulley

[sl2eggplant]

I have a 2000 Sienna and plan on changing the timing belt,water pump, oil seals, etc.

I want to buy two bolts that fit into the two holes (one on each side) of the crankshaft pulley so I can build my own tool to help hold the crankshaft still.

Do you know what the thread size of the bolts?

Thanks.

[Black Sunshine]

I don't think that those holes are threaded. I used a chain wrench. I've used chain wrenches on a few different cars to do this procedure. The only problem with the chain wrench technique is that it can bugger the pulley ribs. If it does file them smooth again, I used a Dremel. Next time I will pad it with a bicycle inner tube. If you are good you can get the chain wrench to set on the middle slot and it won't affect the ribs.

Others use an impact wrench but that won't necessarily allow you to re-torque the bolt to spec.

There are also universal versions of that tool that you want to make but I don't know where to buy it.

Haha, I looked around and check out this one: http://www.harborfreight.com/pulley-...ool-66385.html

This one will cost you a little more but it will leave much better armed in the face of any such pulley:

Amazon

Amazon

I'll probably buy one of those now before my next T-belt change. 50,000 miles to go.

[sl2eggplant]

Thanks for the input.

Its funny. On Memorial Day, I was at Harbor Freight and had the pulley spinning tool and the serpentine belt tool in my shopping cart and put both back away. I opted to use my coupons on a two stage vacuum pump and circular saw.

I'm going to get the OTC 4754 tool. Looks like that is the best option.

Those holes are definitely threaded on the crankshaft pull. Also, they would have to be threaded so that you could use your pulley puller tool to pull out the pulley once you remove the bolt.


Thanks

[Black Sunshine]

You don't really need a puller to get it off once the bolt is out.