3.8 FHC -what size socket for crank pulley bolt?

rswaffie · Post by **rswaffie** » Sun May 08, 2016 12:54 pm

Hi,
I want to set the timing on my 63 FHC by finding tdc via cranking the motor by hand. What size is the crank pulley bolt? My largest 32mm socket is too small?
Regards
Richard[/quote]

PeterCrespin · Post by **PeterCrespin** » Sun May 08, 2016 1:22 pm

Put it in top gear and rock it to and fro.

christopher storey · Post by **christopher storey** » Sun May 08, 2016 5:45 pm

IIRC it's the same as the deep socket used for Mini driveshafts and is 1 5/16" AF

Gfhug · Post by **Gfhug** » Mon May 09, 2016 7:27 am

My S2 4.2 litre needs a 1 5/16" AF, maybe they are the same size as the 3.8?

Geoff

rswaffie · Post by **rswaffie** » Tue May 10, 2016 10:57 am

Thanks to all for the responses. I resorted to crawling under the car and measuring the bolt and got the nearest metric equivalent 1/2" drive socket as Halfords didn't have the a/f in that size. For info, it is 34mm. I have now (with the aid of a breaker bar) set the static timing ready for its first startup in 20 years - followed by some dynamic timing if it runs! I'm then going to upgrade to 1-2-3 electronic dizzy.

Gfhug · Post by **Gfhug** » Tue May 10, 2016 3:11 pm

Richard, you may wish to read comments here and other posts about 1-2-3 before fitting, I have no experience of it just going on comments on the forum.
viewtopic.php?t=8783&highlight=simonbbc

Geoff

cactusman · Post by **cactusman** » Tue May 10, 2016 3:20 pm

I have no experience of a 1-2-3 but the vibe from others is they are less than perfect. I have a ?30 powerspark module ( very similar to the pertonix module) on mine). Three years on it is perfect....I would try that first before spending quite a lot on a 123...just my half pence worth...

Series 1 · Post by **Series 1** » Wed May 11, 2016 7:28 pm

I do have experience of the 123 as I fitted one 9 years ago. So far so good!

rswaffie · Post by **rswaffie** » Thu May 12, 2016 3:59 pm

Thanks for the heads-up on the 1-2-3. I have only used one before on my Austin Healey 3000, which was fine and did make a noticeable difference in starting and performance at the top of the rev range. I know people who have run them without problems on MK11 3.8 and S2FHC so I am willing to give it a go. I'll make sure that I keep the original dizzy in working condition just in case!

adam · Post by **adam** » Thu May 12, 2016 7:27 pm

My 123 has been fitted for 8 years no problems at all fit and forget.

Adam

christopher storey · Post by **christopher storey** » Thu May 12, 2016 9:24 pm

Well. for reasons I have set out too often in these pages I wouldn't , but ....

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3.8 FHC -what size socket for crank pulley bolt?

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