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Author Topic: 1948 HRD Vincent -Ashtray to Driveway  (Read 18835 times)

Offline ProSimex

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #30 on: Sep 24, 2014, 10:36:48 »
wha..... wha..... wha...


A FREAKING VINCENT!!!!??!!!!???

Im in, this is beautiful

thank you for bringing this here
"Love is the feelin you get when you like something as much as your motorcycle."

"That's got CV's? Take a #2 phillips screwdriver, heat the tip with a torch until cherry red and plunge it into your eye. It will hurt less. Really."- Kopcicle

Offline Ryan Stecken

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #31 on: Sep 24, 2014, 11:34:32 »
whata fascinating motor! must take craftmanship to reassemble that beauty!

Offline TessierAshpoolSA

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #32 on: Sep 26, 2014, 07:51:20 »
I really enjoyed your photo essay. Thanks for sharing your insight

Offline brt651

  • Posts: 103
Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #33 on: Sep 27, 2014, 04:51:35 »
  The standard cam lobe is about 9mm lift I think. The new Mk5 cam is 11 mm on inlet and 10.5 mm on exhaust.
This means I needed to check rocker travel in order to see if I needed to machine anything away to give me the travel required. The new heads allow for extra travel , though I did have to modify the upper valve guide for clearance. In the following pictures you can see me checking rocker travel and also the rocker actuating on the valve. I have left out the upper valve guide for this picture.

Offline brt651

  • Posts: 103
Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #34 on: Sep 27, 2014, 05:11:00 »
   Hello,
  Here is some picture 's of the timing chest completed. sort off.

Offline brt651

  • Posts: 103
Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #35 on: Sep 27, 2014, 05:16:04 »
Hello Again,
  Firstly because I'm fitting a belt drive and secondly this was a modification done by the factory in around 1951 on the 500. I'm fitting a seal and I need a seal holder. The seal holders I have are the genuine style. But, I have a back to back Timken Taper bearings fitted to the left side of the crank. Originally it has a ball bearing outer most ( which controls crank end float) and the other three crankshaft bearings are roller type. I show the area in the photos, along with my drilling guide and seal holder. I'm not going to use this seal holder as I want it to place some pressure against the taper bearing cup and come outwards from the bearing as well. As I have more clearance with the belt drive than I would if I where to use the original chain primary drive. And since I have 2 engine with this set up I'll be getting 2 made.
   And for those that notice the orange square outline. This is a marking that is stamped into the cases. To check that they are a matched set. Very hard to see. But this unique marking is in the 2 crank halfs,primary cover ,G2 cover. I don't know what the stamping means. Maybe the bloke that assembles the engine has his own stamp?
   Well this is as far as I've got. I''ll get some more pics up as I get more done. Off to lap the pushrods in.
  Cheers
      brt651

Offline VonYinzer

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #36 on: Sep 27, 2014, 18:06:40 »
Signed up. Keep the updates coming!
Like a river that don't know where it's flowin'
I took a wrong turn and just kept goin'

Offline Habanero52

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #37 on: Sep 27, 2014, 18:16:23 »
What a beautiful engine!!! Great job man.
Habanero52
Speed cost....How fast do you want to spend?
Follow the dream.
Why does life get in the way?

Offline brt651

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #38 on: Sep 28, 2014, 04:11:20 »
   Hello,
  Well  I have the Bob Newby belt drive out and measuring for new distance spacers and a new seal holder. I've been in contact with my machinist and he is up to speed. So its all go ahead.
  then I need to make a new primary cover. I have seen some out of fiberglass ,but they look a bit ordinary. It needs to be alloy and polished. Anyone have one?
  Well that means back to the timing side to finish of the push rods.
    Have a great week

Offline cxman

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Re: 1948 HRD Vincent -Ashtray to Driveway
« Reply #39 on: Sep 28, 2014, 08:25:51 »
the timing chest on these reminds me of a pocket watch escapement wheel frame

Nice work sir nice work !
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others