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Topic: Crankshaft end bolt - pulley my leg? (Read 2213 times) previous topic - next topic

Crankshaft end bolt - pulley my leg?

I managed to take out my crank end bolt (with considerable effort and a few bits of wood and scaffold bar). I read without much surprise that this is a single use bolt, so ordered another one. I think it was a tenner or so.

The one I took out was a six sided bolt of 45 mm length but the new bolt that has arrived is a triple square-headed bolt of same thread pitch and diameter but just 30mm length. It doesnt even look like it will reach much of the loading part of the thread in the crank., as the crank end toothed pulley is 25mm deep. see pictures

https://photos.app.goo.gl/LeKX5GxAFHv3NLZC6
https://photos.app.goo.gl/KuysscV924T4E7g59

Can anyone please help me specify / find a replacement bolt? Thank you for your help in advance.

Sorry, its an 87 KR Engined 16v
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #2 –
That other bolt is probably the PB 8v one N90320802 M14x1.5x33, the part number you have is correct for KR but you also need 068105193A washer for that bolt.

Re: Crankshaft end bolt - pulley my leg?

Reply #3 –
Thanks T2000. It looks like the old washer is stuck hard on my pulley, and Ive not tried to hard to disturb it, as I hear friction is key. Do you think I might be best to leave it there?
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #4 –
Quote from: t2000 on
That other bolt is probably the PB 8v one N90320802 M14x1.5x33, the part number you have is correct for KR but you also need 068105193A washer for that bolt.

I've not investigated whether the washer is stuck on yet.

Are the four water pump / damper pulley bolts around the crank end bolt also single shot? Or can I reuse those.?
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #5 –
Quote from: t2000 on
That other bolt is probably the PB 8v one N90320802 M14x1.5x33, the part number you have is correct for KR but you also need 068105193A washer for that bolt.

Here's a picture of my crank timing  sprocket with the washer firmly stuck to it. Should I prise it off and replace it with a new washer, or just roughen the surface and put the brand new correct size bolt in through it,?

https://photos.app.goo.gl/4m2d2aG7Xm3mUfw76

Thanks for any advice.
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #6 –
The washer I wouldn't worry about too much but I would replace the 4 socket head bolts if you are in there part number N 90339605

Re: Crankshaft end bolt - pulley my leg?

Reply #7 –
Quote from: t2000 on
The washer I wouldn't worry about too much but I would replace the 4 socket head bolts if you are in there part number N 90339605

Thank you  will do. 
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #8 –
Quote from: t2000 on
The washer I wouldn't worry about too much but I would replace the 4 socket head bolts if you are in there part number N 90339605

Thank you  will do. 
16V GTI under restoration
Learning a lot  as I go along
 

Re: Crankshaft end bolt - pulley my leg?

Reply #9 –
Cant find genuine via part number.
What size are they? Another ARP job?
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #10 –
Quote from: EJYT on
Cant find genuine via part number.
What size are they? Another ARP job?

10 pieces here for less than 15 quid, good to keep spares https://www.ebay.co.uk/itm/Genuine-VW-AUDI-SKODA-SEAT-Ameo-Socket-Head-Bolt-M8X37-x10-pcs-N90339605/202561354292?epid=27028007124&hash=item2f2998fa34%3Ag%3AwVQAAOSw5tNcNcgd&LH_BIN=1

Re: Crankshaft end bolt - pulley my leg?

Reply #11 –
Thank you. Much obliged.  Duly purchased.

Now I need to buy 1 1/2 more Golfs...! 

Thank you again.
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #12 –
Im still confounded on finding the right bolt for my car here.  I am buildng a collection!
https://photos.app.goo.gl/yH6CWZC9nyZBb3Es5
The bolt on the left is the six-sided one that came out - 46mm long. The middle one is the 12 pointed first bolt i bought, which is 33mm. I then bought the right hand one (six sided) by part number from the trail cited above,, thinking it was the right one, but it turns out to be 55mm and grounds in the crank before it bites.

Can anyone please help me get hold of a 45mm bolt ? I'm happy to buy VAG, ARP, or whatever it takes!

Yours gratefully!
16V GTI under restoration
Learning a lot  as I go along

Re: Crankshaft end bolt - pulley my leg?

Reply #13 –
That is the right part number according to ETKA