| T O P I C R E V I E W |
| devnet H120 |
Posted - 11 Jan 2013 : 21:48:46
Happy New Year All,
I'm starting to put the old H120 Fastback back together and I am in need of a new H120 diff. If anyone has a spare and is willing to sell it to me it would be greatly appreciated.
Many Thanks
devnet H120 |
| 15 L A T E S T R E P L I E S (Newest First) |
| devnet H120 |
Posted - 09 Mar 2013 : 19:25:11
Cheers got my eye on it, think I tried to buy the same one a while ago but seller disappeared. Still thinking about taking mine apart tho.
devnet H120 |
| JPSH120 |
Posted - 08 Mar 2013 : 09:09:53
Here you go!
http://www.ebay.co.uk/itm/sunbeam-rapier-fastback-holbay-h120-diff-/140927727126?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20cff27616
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| 1922 |
Posted - 28 Feb 2013 : 18:47:21
My part's books lists the same speedo for auto and manual.
Hmmm - to be honest I've no idea!
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| JPSH120 |
Posted - 28 Feb 2013 : 15:03:11
quote:
Originally posted by 1922
Ah - gotcha 
Auto Rapier has a 3.7 (and that was used on a few different models too  ).
If it was my car I'd be tempted to fit a 3.7 and get the speedometer recalibrated - it'll be better for motorway cruising.
Hmm, interesting. That might be something I consider for mine then, shame I've just spent umpteen hours stripping my axle back to bare metal and painting it 
I also have the speedo from the auto so could I do a straight swap??
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| devnet H120 |
Posted - 28 Feb 2013 : 14:15:41
Cheers for all the info guys. Not decided what I am doing yet, keeping my eye out for an axle but might try get my diff out and recalibrated.
devnet H120 |
| 1922 |
Posted - 28 Feb 2013 : 13:55:59
Ah - gotcha
Auto Rapier has a 3.7 (and that was used on a few different models too ).
If it was my car I'd be tempted to fit a 3.7 and get the speedometer recalibrated - it'll be better for motorway cruising.
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| JPSH120 |
Posted - 27 Feb 2013 : 14:28:50
Don't worry, I think I am just getting a bit confused!
I didn't realise the 3.89 diff was fitted to all those other models. The thing that threw me was the reference to the fastback alpine having the 3.89 diff, I assumed it would be the same as the rapier.
I have an axle that I took out of a fastback auto and I was trying to establish if it was suitable - I think I've got it now!
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| 1922 |
Posted - 27 Feb 2013 : 13:58:05
Eh?
The rear axles from any car in the entire Hunter/Arrow range will fit - the only difference is the ratio. The H120 uses a 3.89 ratio and so do lots of other cars in the Arrow range.
So he could use the axle from:
H120
or
Humber Sceptre saloon,
Fastback Alpine,
Hunter 1725 estate,
Hunter 1500,
Hunter saloon 1725 with optional overdrive.
All these use a 3.89 axle and the complete axle or just the diff unit be bolted right on to an H120.
There might be a few more - I don't have the parts book to hand.
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| JPSH120 |
Posted - 26 Feb 2013 : 13:25:09
OK good, so in that case he does need to find an H120 specific diff, not one fitted to any of the 1725 range 
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| 1922 |
Posted - 26 Feb 2013 : 13:17:10
Nooo - you are reading the manual correctly. The standard manual gearbox Rapier was always built with a 4.22 diff. It isn't one of the cars they fitted the 3.89 to.
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| JPSH120 |
Posted - 25 Feb 2013 : 11:15:47
quote:
Originally posted by 1922
Sorry, don't have one.
But remember that all the 3.89 diffs are the same, it's not special for the H120.
There were also fitted to Humber Sceptre saloon, fastback Alpine, Hunter estate cars, Hunter 1500. Probably any Hunter with a 1725 and an overdrive box will have one.
I was looking at the workshop manual over the weekend and the diff is listed as different on the H120 compared to the std rapier 3.89 v 4.22, unless I am reading it wrong??
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| arrocuda |
Posted - 19 Jan 2013 : 09:23:18
 Series VI = Fastback (Mk 1)!
Building the 'Mark II' fastback Rapier ('Arrocuda'). |
| JPSH120 |
Posted - 18 Jan 2013 : 12:24:21
I reckon it must be a typo, it should read IV
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| 1922 |
Posted - 18 Jan 2013 : 12:18:58
Hmmm - The Parts Book is "SUNBEAM RAPIER SERIES I-V" but the page (see plate ref AB24 near the top) clearly lists "VI".
Perhaps it should be "IV"?
There's no such thing as a series VI - doh.
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| JPSH120 |
Posted - 18 Jan 2013 : 11:34:48
Series VI Rapier??!!
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