Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 23, 2022 18:57:08 GMT
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Noticed in one of the pictures over something I needed to check out. Yep its a spacer The flywheel does in fact have the correct depth of register for mounting to the flywheel So why the spacer? Someone made an error and made the flywheel too thin in the wrong place - and too thick in other area's - The flywheel bolts needed to be countersunk to clear the friction plate so what happens then is the flywheel bolts bottom out before they clamp - Flywheel is 8mm thick at the bolts and the bolts bottom out with 10.5mm space.
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Last Edit: Apr 23, 2022 19:05:48 GMT by Darkspeed
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stealthstylz
Club Retro Rides Member
Posts: 14,927
Club RR Member Number: 174
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Apr 23, 2022 19:01:53 GMT
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Wonder why they didn't just chop the flywheel bolts down. Does it clear everywhere else?
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 23, 2022 19:16:10 GMT
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Wonder why they didn't just chop the flywheel bolts down. Does it clear everywhere else? I need to bolt the flywheel on with some washers under the bolts with the cover on and no plate - pop the box on and see what happens with the starter motor mesh and the release bearing fit.
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 24, 2022 11:00:58 GMT
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The incompetence of the companies that the original builder chose to deal with continues to astound me. Original flywheel - registers on the crank as it should - no surprise there - and the ring gear sits 4.5mm or so from the block face. The bolts snug with plenty of depth before any chance of bottoming out - as you would expect - and the flywheel thickness where it clamps to the crank is 12.5mm - allows 2mm of clearance for the bolts to torque prior to bottom. The "lightweight" - Without the spacer it actually registers on the crank very well - as good as the original - However, the ring gear is way off and looking at the witness marks on the starter teeth, it may not mesh. With the 3mm spacer in the flywheel does not register on the crank ! It must only align on the edge of the crank chamfer ! which is not good at all. The thickness of the flywheel at the crank boss is 8.5mm - which really is marginal - I think that the ring gear has deliberately been put on the wrong way round to provide more tooth engagement for the starter. Really - the level of incompetence to result in something downright dangerous. And the result for the original builder for shelling out for this dangerous POS - A 14.8 Kg assembly from a 16.7Kg assembly ! 1.9 KG saved or a mere 11.3 % lighter ! - You could safely get that out of the back of a stock flywheel ! I will salvage the ring-gear and that's it. "It has a lightweight flywheel" - errr no it has a dangerously mounted, poorly designed Steel flywheel that's only slightly lighter. Thankfully I have this standard manual flywheel to use as they are not exactly common.
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Last Edit: Apr 24, 2022 11:07:14 GMT by Darkspeed
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 24, 2022 20:40:10 GMT
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Last Edit: Apr 24, 2022 21:05:37 GMT by Darkspeed
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Apr 24, 2022 20:47:15 GMT
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could have been 'interesting' if it had ever been revved up in anger.........
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 24, 2022 21:35:32 GMT
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could have been 'interesting' if it had ever been revved up in anger......... I don't know the time lines and when the "frightweight" flywheel was fitted but the car did do at least one track day and the event over in France. I expect that what saved it was all the other issues like the chassis falling to bits and the wheel bearing failure preventing the car being used to any great extent. I will have a chat with a guy I know to see what weight I can shave off the the stock fly. That large lump on the periphery could be removed I have also dropped a mail to TTV to see if they have any files on the 825/827 Legend C27A C25A etc. See what the costs are for a correctly designed and manufactured one plus a lightweight clutch assembly. They should be able to put together a 9KG assembly - a 46% weight reduction. Just depends if I can accept the price tag.
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 28, 2022 15:23:22 GMT
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I have started a dialogue with TTV - As expected it's not something that they have done before so I have a form to fill and dimensions to take prior to boxing up the stock flywheel and sending it off to them for the design and build works. The initial feedback on the price is reasonable so that's the route I will take. Will just have to go through the sheds and sell off some of the tat gold hoard.
Dragging the flowbench out of storage to have a play with that as well.
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16grit
Part of things
Posts: 214
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Apr 28, 2022 15:58:48 GMT
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The initial feedback on the price is reasonable so that's the route I will take. Will just have to go through the sheds and sell off some of the tat gold hoard. Dragging the flowbench out of storage to have a play with that as well. Great to see you making some headway. I'm still not completely satisfied with my flywheel choice on my Dav project and it's one area I wish I had bitten the bullet earlier and bought a TTV one for before wasting heaps of money trying other solutions exploring other options. Lots of other bits are 'dimensioned' off it and the clutch its going to carry (concentric release etc ?) and while the two taken together are a big chunk , sorting that pair is a big step in the right direction.
What gearbox are you lining this up with?
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 28, 2022 19:06:50 GMT
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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We had a new arrival on Wednesday evening - meet Eliza
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Now she's a beautiful little girl, Nigel,
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BMW E39 525i Sport BMW E46 320d Sport Touring (now sold on.) BMW E30 325 Touring (now sold on.) BMW E30 320 Cabriolet (Project car - currently for sale.)
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Awww
I "think" some of the rover boxes could be had with Torsen LSD
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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I "think" some of the rover boxes could be had with Torsen LSD I have not found any evidence of that, PG1's had them but from what I know there are not that many PG2's around as most cars with the engine were specified with Auto and I do not know if they share any internals like the diffs etc. with the PG1.
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Apr 29, 2022 10:06:58 GMT
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ahh, is it all different to the rest of the range? the 800 turbo came with Torsen rimmerbros.com/Item--i-GRID004750 listen here. Is the V6 bellhouse pattern different?
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 29, 2022 10:35:13 GMT
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ahh, is it all different to the rest of the range? the 800 turbo came with Torsen rimmerbros.com/Item--i-GRID004750 listen here. Is the V6 bellhouse pattern different? As far as I know only the V6 had the PG2 and its a Honda pattern. I have looked into it and its the same as induction / exhausts / flywheels / ECU's / Cams... well everything really - You are on your own - there are probably some historic tuning of these in US and Japan for the Legends decades back but no one really bothers when you could get 10,000RPM screaming four pots etc. And in the Rover you just turn up the boost on the Vitesse. Honestly, if a person had any sense they would not bother with tuning a C27A, let alone one bolted to a PG2. There are so many better engine/box combinations out there now. When the car was new there were very few engine options but doing it now.....The actions of modifying this particular engine in this particular car are the actions of a mad man. I could say I am doing as it has cost very little and in a way it has but in reality the money would have still been spent more wisely elsewhere. It's being done this way because of - well, stupidity stubbornness.
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Last Edit: Apr 29, 2022 10:37:21 GMT by Darkspeed
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Apr 29, 2022 10:48:59 GMT
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well it is a great engine and you already have it, so I admire the perseverance
looks like the 2013 Acura TL V6 comes with factory LSD. No idea if bolt pattern is the same, but these are probably Japan or US only
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Darkspeed
Club Retro Rides Member
Posts: 4,845
Club RR Member Number: 39
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Apr 29, 2022 12:32:59 GMT
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well it is a great engine and you already have it, so I admire the perseverance looks like the 2013 Acura TL V6 comes with factory LSD. No idea if bolt pattern is the same, but these are probably Japan or US only Completely different engine and a Honda gearbox - I think with the later engines they went inline instead of transverse and put the diff in the sump! Probably so they could offer AWD option. I have done quite a bit of homework on the these with the C series the J series etc. The most likely candidate for anything sporty to bolt to it will have NSX written on it. Funny if my car was complete it would be about the same value as a similar age NSX.
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Apr 29, 2022 12:50:42 GMT
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Ok fella, i should have realised you'd be all over the possible options.
J series is a very nice engine, but I'm sure this one will be ample in such a light car
If you are up around NSX value then you have done rather well on this
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Last Edit: Apr 29, 2022 14:20:45 GMT by legend
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MiataMark
Club Retro Rides Member
Posts: 2,970
Club RR Member Number: 29
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Apr 29, 2022 13:24:49 GMT
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We had a new arrival on Wednesday evening - meet Eliza Exmoor?
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1990 Mazda MX-52012 BMW 118i (170bhp) - white appliance 2011 Land Rover Freelander 2 TD4 2003 Land Rover Discovery II TD52007 Alfa Romeo 159 Sportwagon JTDm
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