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Help needed

Puddle jumper

Well Known and Active Website User
Non-VOC Member
Hi,
Can any one help me trace some of the history on an HRD engine which I am using in a custom built frame.
The Engine number is F010 AB/1/149, the only details I have are that it has had the gearbox removed (with a hacksaw!!!!) :(, For what reason I do not know, (this information would be useful).
The engine also has a small black plate riveted to the timing cover,
this plate is marked up as a Mod List and numbered 1 to 25.
The previos owner had it in an Austin 7 with a straight cut MG gearbox :D, but he brought the engine with the HRD gearbox already removed. This was about 50 years ago and it spent the last 48 years in a shed.
Any help with any history or why it had the gearbox removed would be helpfull,
Cheers Paul
 

Puddle jumper

Well Known and Active Website User
Non-VOC Member
Gearbox

Thanks, do you know what gearbox would have been used?,
I am using an old Harley shovel 4 speed kick start box with a 3" open belt primary drive, I think it should be able to handle the power.
Cheers
 

Len Matthews

Well Known and Active Website User
VOC Member
Chopped engines were often used in kneeler racing outfits-but fifty years ago? Seems doubtful. Austin Seven with a HRD engine? Very strange,I'd like to see a picture!:confused:
 

roy the mechanic

Well Known and Active Website User
VOC Member
Puddle Jumper/ gearbox

H-d tranny will be strong enough! I run a shovel myself. You can fit a reliable H-D electric foot if you desire. I would advise fitting kevlar clutch plates if utilising H-D unit- fitted to mine many years ago, they are the dog's b-----s! Be lucky .
 

Puddle jumper

Well Known and Active Website User
Non-VOC Member
Hi Roy,
I was going to stick with the kick start (proper biking and all that), I'm using a 3" open belt primary and clutch from BDL, should be good enough, I hope.

Take care out there

Paul
 

Tom Gaynor

Well Known and Active Website User
VOC Member
Belt drives

80 bhp 900cc Weslake race bikes use a 1" belt and Newby clutch so yes, a 3" belt should be OK.
Hi Roy,
I was going to stick with the kick start (proper biking and all that), I'm using a 3" open belt primary and clutch from BDL, should be good enough, I hope.

Take care out there

Paul
 

roy the mechanic

Well Known and Active Website User
VOC Member
puddle jumper/ H-D tranny

Been thinking about you proposed hybrid, this is going to be a very weird chassis to accomplish. The h-d trans has horizontal mounts The vin has vertical mounts, at least at the front, lord knows what's left at the rear of the motor! Be very aware of the difference in width between the two very different motor widths. The h-d is very "skinny" compared to the vin. I hope i'm wrong ,but can't help feeling that a world of pain exists with chain alignment/belt alignment .Despite the doom+ gloom I would wish you good fortune+ love to see it completed, you will be in line for one of my mum's putty medals! Best wishes,Roy.
 

Tom Gaynor

Well Known and Active Website User
VOC Member
Vin - har!!

I'm not building one, but I know a man who is. You are correct, it has proved to be a monstrous job for exactly the reasons you cite. The "RFM" has had to be fabricated from scratch. Doubtless more grief awaits...
Been thinking about you proposed hybrid, this is going to be a very weird chassis to accomplish. The h-d trans has horizontal mounts The vin has vertical mounts, at least at the front, lord knows what's left at the rear of the motor! Be very aware of the difference in width between the two very different motor widths. The h-d is very "skinny" compared to the vin. I hope i'm wrong ,but can't help feeling that a world of pain exists with chain alignment/belt alignment .Despite the doom+ gloom I would wish you good fortune+ love to see it completed, you will be in line for one of my mum's putty medals! Best wishes,Roy.
 

roy the mechanic

Well Known and Active Website User
VOC Member
puddle jumper hybrid

Hi, just seen the pics, looks real good to me! There will be some negative feed-back. remember the t shirt slogan- DILLIGAF. More pics when painted etc, Please. Best wishes Roy.
 

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