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Triumph Torque    Cars    Herald/Vitesse  ›  Distributor Drive / Pedestal fitting
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cmhall, Dave1360, Nick Jones and 7 Guests

Distributor Drive / Pedestal fitting Print
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Zendervision
January 29, 2010, 5:53pm Report to Moderator


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I am fitting my distributor to my new block. I've been reading the instructions about measuring endfloat, but I haven't been able to get that far, because the pedestal won't fit with the distributor drive in place. There's a gap of about 5mm between pedestal and block.

With the drive gear removed, the pedestal fits perfectly. Yet the drive gear fits too - turns with the camshaft and operates the oil pump. I just can't fit the pedestal while the drive gear is in place.

What am I missing/doing wrong?
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herald948
January 29, 2010, 7:28pm Report to Moderator


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The drive gear might not be fully seated (although it's in there enough to engage the camshaft)?


--Andy Mace

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*Man: Well, no ... It's not so much of a jet, it's more your, er, Triumph Herald engine with wings.
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http://triumph-herald.us
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cliftyhanger
January 29, 2010, 7:56pm Report to Moderator

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Hmm, where did the dizzy and pedestal come from?? The lucas and delco dizzies use different pedestals....also the drive is different on 4 and 6 cylinders (not sure if they are just different heights or what though )


Clive Senior

Location-Brighton, East Sussex
Foxy is here, 1500od tax exempt Toledo. Now has the decent engine back in
Spitfire Zetec project is started work progressing slooooowly
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Zendervision
January 29, 2010, 8:09pm Report to Moderator


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The only thing which has changed is the block. The pedestal, drive and distributor (Lucas) are the ones from my old engine.

Andy: The gear appears to be properly seated - turns with the camshaft as it should, smooth as anything.

Here's a couple of pictures:
This is the gap with gear in place:


And here's a slightly out of focus shot showing what's underneath the gear:
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Nick Jones
January 29, 2010, 8:31pm Report to Moderator

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It's because the drive gear is not going down fully, which in turn is almost certainly because it's not engaging with the slot in the oil pump drive.  It's all a bit of a fiddle as you have to anticipate where the slot it going to be at the moment it gets to the height where it starts to engage.

Once you've got it to engage you still need to be a bit careful as it will probably still be proud by a fraction of a mm.  This is intentional, you are supposed to measure the resulting gap and add the right thickness of gaskets to give the right end-float to the gear.  You need the manual for the full explanantion!

Cheers

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012 & 10CR2013.
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013

http://www.tengaston.plus.com
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Steve P
January 29, 2010, 8:45pm Report to Moderator
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I agree with Nick,i had the same thing when i built my 2.5,you may think the drive is right on the skew gear but as it turns about 1/4 of a turn as it drops it probably isn`t mating with the oil pump drive fully.Make sure you get the correct endfloat aswell,if not the skew gear will rub on the pedestal.
Steve


No. of Triumphs owned..2
No. of Triumphs working..0
Location:Surrey
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Zendervision
January 29, 2010, 8:46pm Report to Moderator


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Thanks, I'll go experiment with it some more.

The manual makes measuring the gap sound rather complicated! I had to read that through a couple of times before I understood what I was supposed to be doing.
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JensH
January 30, 2010, 8:54am Report to Moderator

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Sure the distributor bush (drive gear bush) is all way down?
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Pete Lewis
January 31, 2010, 12:52pm Report to Moderator


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Bit obscure but we had some alignment troubles with out 64 Vit6 there was a 44year old lump of casting snot jammed hard against the oil pump shaft, which over the years had niceley machined a tapered relief in the shaft , ony came to light when fighting to  fit  a new pump and looking at the old  shaft thinking who machined a shear point in the shaft  
so make sure there's nothing down the shaft bore side  loading the shaft fit    Pete


1964 1600 Vitesse 6 Cactus and Black ,modified to keep pace .
locationLuton
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Zendervision
January 31, 2010, 4:44pm Report to Moderator


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Interesting, I'll check.

Quoted from JensH
Sure the distributor bush (drive gear bush) is all way down?

Yeah, I measured it in comparison with the old block. I had thought the drive gear was resting on the bush, but it turns out they're not touching. The drive gear is sitting on top of the oil pump drive shaft.

It's not possible for the oil pump driveshaft to be too high, is it?
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GT6 M
January 31, 2010, 6:26pm Report to Moderator

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one other thing, the Lucas ones, will only go in one way, the drive slot is of set,
so try it at 180 degs the other way,


One does not have to know how a thing works, to know that it is not working right

Ye div,nt efta no ooa thing wuks, t,no its nut wuk,n reet.







Scaryport,��Cumbria,.
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Zendervision
January 31, 2010, 7:15pm Report to Moderator


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I didn't know that, thanks.
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GT6 M
January 31, 2010, 7:45pm Report to Moderator

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Quoted from Zendervision
I didn't know that, thanks.


ye dee noo !!!!

look at your photo, it shows it !!!!

when its in, you can set the endfloat different to the book, [ real fart that way ]
get a feeler gauge, and put it under the bottom of the ped,,and the gap between this,and the cog,  will show you how much is left to play with

rgds markus


One does not have to know how a thing works, to know that it is not working right

Ye div,nt efta no ooa thing wuks, t,no its nut wuk,n reet.







Scaryport,��Cumbria,.
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GT6 M
January 31, 2010, 7:54pm Report to Moderator

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here  hold on a min, im thinking of the dizzy,  
the lucas dizzys are diff to the delco ones, [ least the ones i have were ] and the slot in the dog, will only match the dizzy shaft one way,

but its the actuall pedastal that wont go down,,   is it !!!

well if it is this, then it is probly not fitting into the top of the oil pump slot, , so turn engine around, with some pressure ont cog, [ srewdriver,and press down ] and it should go in when the two line up,

Marcus


One does not have to know how a thing works, to know that it is not working right

Ye div,nt efta no ooa thing wuks, t,no its nut wuk,n reet.







Scaryport,��Cumbria,.
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Zendervision
January 31, 2010, 8:38pm Report to Moderator


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Right! Will go and give that a try in a minute.

I need a rest from the bloody thing right now  
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