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TIMING ADVANCE DOWEL DEPTH OF HOLE?

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PAULJAC47
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TIMING ADVANCE DOWEL DEPTH OF HOLE?

#1 PostAuthor: PAULJAC47 » Thu Dec 19, 2013 8:01 pm

Guys just took of the mechanical advancer on my z1000 b3 project to check out the dyna rotor and advancer,out fell the remains of the little dowel that locates in the slot in the back of the advancer,need to source one of these before i can progress,there are some on Us ebay with daft postage,cant see owt on z power or Cradley kwak says not available,it just looks like a rolled pin to me 8mm long 4mm across Kwak part number is 551a0408 number is 92042-034 in z power parts book,any one got any idea were i can obtain pronto? Cheers Paul J
Last edited by PAULJAC47 on Fri Dec 20, 2013 5:57 pm, edited 1 time in total.
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#2 PostAuthor: z1bman » Thu Dec 19, 2013 8:12 pm

you have quoted the wrong part number it should be 555A0408 + cradley have it in stock £ 1.70

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#3 PostAuthor: PAULJAC47 » Thu Dec 19, 2013 8:39 pm

Cheers Mate will pop over tommorow...
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

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#4 PostAuthor: PAULJAC47 » Fri Dec 20, 2013 5:21 pm

Guyz just has a look at the depth of the drilling that this pin needs to go in seems about 1.5mm deep as the pin is 8mm long will foul on the advance unit,seems someone before has the same prob and tried to hammer the pin in and hence it fell out.doesnt seem to be any old pin broken in there,just seems to be too shallow a hole to do the job,anyone come across this before?tempted to just drill out deeper....
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

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#5 PostAuthor: z1bman » Fri Dec 20, 2013 7:02 pm

the hole for the pin should be at least 4mm deep

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#6 PostAuthor: PAULJAC47 » Fri Dec 20, 2013 7:55 pm

Yep i thought it looked shallow,looks like a bit of carefull drilling..Thanks Paul J
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

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#7 PostAuthor: Z1parR » Fri Dec 20, 2013 8:01 pm

Just measured two spare MK2 cranks , both have a roll pin in and both are 6.5mm depth .
0172 . Geoff Parr

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#8 PostAuthor: PAULJAC47 » Fri Dec 20, 2013 8:03 pm

Thanks Geoff looks like i may indeed have the remains of summat in there....Cheers PaulJ
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

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#9 PostAuthor: Z1parR » Fri Dec 20, 2013 8:20 pm

As z1bman said the hole should be 4mm minimum , effective diameter and all .
My measurement was taken from face to the centre point of the drilled hole .
0172 . Geoff Parr

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#10 PostAuthor: Pasc » Fri Dec 20, 2013 8:46 pm

Paul, if I remember correctly the 750 turbo used to have a rolled pin but they kept shearing and I believe it was superceeded with a solid pin. not sure if the size was the same as yours but might be worth replacing with the solid type.

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#11 PostAuthor: PAULJAC47 » Sat Dec 21, 2013 9:46 am

Good advice thanks Guyz
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

-Han Solo



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#12 PostAuthor: Al » Sat Dec 21, 2013 11:37 am

The RHS of my J was scraped off in a incident with the PO.
He replaced the timing cover / inner cover, advance unit and dowel (roll pin).
The roll pinl was left flat on the end (may have been too long a roll pin) and he hadn't noticed, or I when i bought it that it had made the advance unit spin eccentrically because the slot in the back of the advance unit is tapered to its outside edge.
I filed an angle on the end of the roll pin and all was well again!

AL
1981 J1

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#13 PostAuthor: PAULJAC47 » Sat Dec 21, 2013 3:21 pm

Guyz, have sorted now, the sheared pin was aright sod to drill out managed to get it out with a left hand drill ,All fitted back together now and have managed to static time to the full advance marks,i reckon the pin shearing had let the advance unit move hence causing the unit to not go to correct advance position..Thanks for all advice on this and have a good hol all!!!
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

-Han Solo



You can't polish a turd, but you can roll it in glitter



Salad is what real food eats.

Anon



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