Home > V8 > GEMS Rover v8 with a manual transmission |
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Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 727 |
Hmm... Further internet research suggests that there were both a Discovery, P38 and Defender, all of which used a GEMS engine Rover v8 with a manual variant.
Part number ERR5396 seems to be a kit, but is unavailable on Jag/LandRover classic website: https://parts.jaguarlandroverclassic.com/e...e=L7G02095 But, part 611323 is available, and is a lot cheaper: https://parts.jaguarlandroverclassic.com/6...e=L7G02095 The problem is - I don't see what the difference between those two items are. The first is listed as: "Flywheel engine" The second as: "Gear ring flywheel engine" Anyone care to speculate on what the difference is please? 2005 Td5 90 XS 1989 V8 110 CSW |
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19th Jun 2020 9:16pm |
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under_rover Member Since: 02 Apr 2013 Location: Yorkshire Posts: 151 |
I think the 611323 is just the starter ring gear, as opposed to the whole shebang Cheers
Laurie 90 rebuild thread - https://www.defender2.net/forum/topic62909.html |
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20th Jun 2020 7:36am |
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Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 727 |
Ah... that would explain the price discrepancy. Well pants... This project is stopped in its tracks until I locate a suitable flywheel then. 2005 Td5 90 XS
1989 V8 110 CSW |
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20th Jun 2020 9:54am |
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VVS210 Member Since: 12 Nov 2016 Location: Hampshire Posts: 953 |
Disco 2 V8s are all Thor (Bosch Motronic) not GEMS, early P38s were GEMS but later ones were also Thor.
There is a guy on eBay who breaks P38s it might be worth looking him out & getting in touch to see what he has or at least to picks his brains? Just looked him up, no connections with the guy but he has 100% positive feedback on 6,111 reviews which says a lot to me! Seller name is east-coast-range-rovers. |
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20th Jun 2020 11:48am |
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Lodelaner Member Since: 04 Feb 2010 Location: Lambourn Posts: 630 |
Ouch! Very solvable, but this is going to cost.
P38 manual flywheel (ERR5396) includes the reluctor ring. You will also need to change the crank sensor to ERR6357 which is different to the auto. Click image to enlarge Unfortunately the flywheel is dual mass, so avoid second hand. They’ve invariably been removed for a reason. New flywheels we’re £600 plus last time I checked. eBay was £400 for second hand which is a false economy. The ECU will need to know it’s a manual as well. You may need to fit a brass spigot bush as well into the end of the crank - this is the case for older V8 auto/man conversions so it may be the case for GEMS. JB @Lodelaner Instagram Youtube greenlaning and other LR related content |
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20th Jun 2020 4:38pm |
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Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 727 |
Thank you for the information gentlemen. I have managed to find a couple of the flywheels on ebay, one looks pretty rough, and the other the guy is asking over £600 for, which does seem a bit on the steep side for a used part.
I'll contact east-coast-range-rovers VVS210 if I don't manage to find a new one. My suspicion is that they are no longer available from Land Rover - I'll find out on Monday with a bit of ringing around. How sure are you Widget that they were dual mass on the p38? The information I found indicated that all the Rover v8's used a single mass flywheel, which would make sense given its an 8 cylinder engine. I wonder how I tell the ECU its using a manual :/ Time to contact Roland at ACR I think. 2005 Td5 90 XS 1989 V8 110 CSW |
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20th Jun 2020 7:08pm |
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Lodelaner Member Since: 04 Feb 2010 Location: Lambourn Posts: 630 |
My memory isn’t what it used to be - dual mass is only diesel 😊 JB
@Lodelaner Instagram Youtube greenlaning and other LR related content |
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20th Jun 2020 8:29pm |
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mikeh501 Member Since: 07 Jan 2013 Location: United Kingdom Posts: 1142 |
Had exactly all these shenanigans with my v8 r380 conversion. The gems flywheels are literally like rocking horse s&^%$ and you will pay for the priveledge.
Your other option which when you add the costs can be more cost effective is a 3rd party ECU like megasquirt or emerald etc. This uses a VR sensor and trigger wheel on the crank pulley. You can then just any v8 flywheel |
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23rd Jun 2020 6:33pm |
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GREENI Member Since: 22 Aug 2010 Location: staffs Posts: 10378 |
I’d drop Roland an email and quiz him, you’ve spent enough money.... ask me how I know
If no luck, try Dave Ashcroft |
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23rd Jun 2020 7:36pm |
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Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 727 |
I have thanks Greeni, and he's managed to locate one somewhere (hopefully not that dodgy one on ebay!). Maybe he can skim the face of a used one to make it look shiny and new again
Fingers crossed it all pans out... 2005 Td5 90 XS 1989 V8 110 CSW |
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24th Jun 2020 11:16am |
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Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 727 |
Yeah I did look at that - but I'm reluctant as I've already paid for a mapped GEMS ECU - all ready just to "plug in". Switching ECUs would have been a real last gasp resolution, thankfully it looks like things are getting on track again 2005 Td5 90 XS 1989 V8 110 CSW |
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24th Jun 2020 11:18am |
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GREENI Member Since: 22 Aug 2010 Location: staffs Posts: 10378 |
There was no 'plug-in' option when I built mine, I had to figure it all myself...
Then when I had, turned out the ECU was still immobilised...took me weeks to figure that out. |
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24th Jun 2020 11:59am |
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Shroppy Member Since: 25 Feb 2016 Location: Shropshire Posts: 864 |
I'm going down the same route as you with, a 4.6 and an R380. My friend who happens to be a tuning specialist suggested that the best option would be to remove the trigger ring from a flex plate and, send that along with a suitable flywheel (I'll send the larger, range rover one I have here for more torque) to have it skimmed and, the flexplate riveted on in the correct position. From memory, he suggested V8 developments would be the best option for the above work. 1985 127 V8 Build Thread
Series 2 109" Series 1 80" |
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24th Jun 2020 1:31pm |
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GREENI Member Since: 22 Aug 2010 Location: staffs Posts: 10378 |
I forgot to ask the obvious question....
Why not go auto? My Ashcroft 'monster' box is the dogs doodahs. |
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24th Jun 2020 2:39pm |
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