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Engine Specific Info and Questions => IDI Engine => Topic started by: jaysen71581 on February 21, 2011, 07:26:48 am

Title: Crank Pulley Bolts
Post by: jaysen71581 on February 21, 2011, 07:26:48 am
Trying to remove the 4 bolts that hold on the crank shaft pulley, got the first 3 bolt out, went to get that last one and the bastard rounded out on me, i did the pb blaster over night, along with the tapping of the hex socket in, anyone have a good fix for this??
Title: Re: Crank Pulley Bolts
Post by: rdezsofi on February 21, 2011, 07:49:31 am
If you can't grab it with a quality vice-grip and get it to loosen.....use a die grinder to remove the head. Once the pulley then comes off, you should have enough room to use the vice grips to twist out the remains. If you still can't get it out at this point, just replace the gear....
Title: Re: Crank Pulley Bolts
Post by: coke on February 21, 2011, 07:49:52 am
Pound the next largest size bit into the head with a large hammer, and take it out.

Or, you can use a dremel and cut a slot through the bolt that a flat tip screwdriver with a large end will fit in, and use vice grips on the screw driver to turn it loose. Had good luck this way too.
Title: Re: Crank Pulley Bolts
Post by: theman53 on February 21, 2011, 08:19:06 am
If you could pound that next largest one in possibly a SAE instead of metric socket bit and use an impact to reverse it that usually helps. You hate to but sometimes an air hammer/chisel is the answer.
Title: Re: Crank Pulley Bolts
Post by: R.O.R-2.0 on February 21, 2011, 08:22:07 am
just drill the head off the bolt then twist out the rest with your fingers..
Title: Re: Crank Pulley Bolts
Post by: 410 on February 21, 2011, 08:40:50 am
Also a 12mm 12 point socket will pound onto the bolt head and bite enough to get it off.  Works almost every time.
Title: Re: Crank Pulley Bolts
Post by: GEE-BEE on February 21, 2011, 08:56:03 am
We need someone to stock ARP 12pt 8 x45 mm Bolt's for this application..

GB
Title: Re: Crank Pulley Bolts
Post by: BigVWman on February 21, 2011, 08:59:14 am
i use an air chisel and try to catch it on an angle, the vibration usually helps break them loose! just don't slip off!
Title: Re: Crank Pulley Bolts
Post by: theman53 on February 21, 2011, 09:10:25 am
We need someone to stock ARP 12pt 8 x45 mm Bolt's for this application..

GB

Not ARP but I got them. Also, in stainless, but I am pretty sure that there are a couple different crank pullies and bolt lengths. No bother to me, I should have all in stock at work.
Title: Re: Crank Pulley Bolts
Post by: 8v-of-fury on February 21, 2011, 09:33:07 am
Yes there should be different lengths.. fwiw, atleast four.. single v-belt (alt and wp), double v (alt/wp and ps/ac), serp belt, serp belt with v belt (wp, ps,).

If they took their old bolt out and got the measurements to you Lucas, would you be able to get them out to people
Title: Re: Crank Pulley Bolts
Post by: jaysen71581 on February 21, 2011, 09:40:06 am
just drill the head off the bolt then twist out the rest with your fingers..
:D Not these little fingers lol......
These bolts are in there pretty good im gonna go out and buy a new set of vice grips and may even do the left handed drill bit trick too.... Wish i had an air chisel, this car is def forcing me to buy tools as i need them lol.... ;)
Title: Re: Crank Pulley Bolts
Post by: Vincent Waldon on February 21, 2011, 09:45:02 am
VW themselves make an upgraded version of these bolts with increased hardness etc... TDI's use 'em but they'd retro-fit.  Most TDI timing belt kits come with the upgraded bolts.. since as you're finding out the old ones can be a pain.

I use anti-seize on 'em when I install 'em... some folks use locktite.
Title: Re: Crank Pulley Bolts
Post by: madmedix on February 21, 2011, 10:47:26 am
Awhile ago I posted about these little beauties: Craftsman female extractors (or easy-outs). Have a search on my username. They're cheap, come in many sizes now and are also known to save mass quantities of skin, analgaesics & beer  :P

Andy
Title: Re: Crank Pulley Bolts
Post by: jaysen71581 on February 21, 2011, 11:08:30 am
i went for the easy out set and i think i need a bigger size than the set i have now ill have to try sears
Title: Re: Crank Pulley Bolts
Post by: theman53 on February 21, 2011, 03:18:51 pm
Yes there should be different lengths.. fwiw, atleast four.. single v-belt (alt and wp), double v (alt/wp and ps/ac), serp belt, serp belt with v belt (wp, ps,).

If they took their old bolt out and got the measurements to you Lucas, would you be able to get them out to people

yep any length we need
Title: Re: Crank Pulley Bolts
Post by: fatmobile on February 21, 2011, 06:09:44 pm
Use your 12pt triple square bit that you have for the axles and hammer it in.  It will come out easily.
You beat me to it.
 I keep a worn out one just for this.
 I think I got it to work on stripped brake caliper allen heads too.
Title: Re: Crank Pulley Bolts
Post by: R.O.R-2.0 on February 23, 2011, 08:32:38 am
just drill the head off the bolt then twist out the rest with your fingers..
:D Not these little fingers lol......
These bolts are in there pretty good im gonna go out and buy a new set of vice grips and may even do the left handed drill bit trick too.... Wish i had an air chisel, this car is def forcing me to buy tools as i need them lol.... ;)

if you drill the head of the bolt off, there is nothing more than a "stud" sticking out of the crank sprocket.. then you can slip the pulleys off and un thread whats left of the bolt.. when you remove the bolt head, there is no more load on the bolt, it simply un screws with your fingers or a pair of vice grips..