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V8 250 and SP 250 flywheel differences

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TWF
Posts: 126
Joined: Wed Mar 09, 2016 7:10 pm
Location: Liverpool

V8 250 and SP 250 flywheel differences

Post by TWF »

Hi ,can anyone tell me how the V8 250 flywheel differs from the SP 250 flywheel i,e weight ,thickness etc , my SP250 has the V8 250 engine and manual gear box fitted but there is a spacer behind the flywheel which according to the parts manual should not be there so i am wondering why it has been fitted by a previous owner and whether the flywheel is from the SP250 instead of the V8 250? Regards ,Terry .

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classiclife
Classic Wise Man
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Re: V8 250 and SP 250 flywheel differences

Post by classiclife »

Hello Terry,

When you say spacer, are you referring to the flex plate which about 5-7mm thick ??

This was certainly fitted to the auto V8 saloon.

I have an auto flywheel in the garage from a V8 saloon which I can photo later today and post; it may be of assistance.

You have a manual g/box, which I presume is from a TR3, but from your previous threads I get the impression that there has been a bit of swapping about etc.

Let me know if the proposed photo might be of assistance.

Regards.

Richard.
1968 Daimler V8-250 Saloon
DLOC East Sussex Branch Secretary
DLOC 2.5L V8 & V8-250 Registrar - https://www.dloc.org.uk/v8-250
DLOC 2024 International Rally - https://www.dloc.org.uk/rally-2024

TWF
Posts: 126
Joined: Wed Mar 09, 2016 7:10 pm
Location: Liverpool

Re: V8 250 and SP 250 flywheel differences

Post by TWF »

Hi Richard ,my SP is fitted with the four speed overdrive manual gear box from the V8 250 ,also the V8 250 saloon engine ,the conversion must have been done many years ago by a previous owner ,at the moment i am in the process of fitting another saloon engine which i have had overhauled ,the spacer that i am refering to is one of two spacers fitted either side of the driveplate on the auto matic version but according to the parts book should not be fitted to the manual version ,i feel that it must have been deliberately fitted but am not sure why,hence my posting,any input would be most welcome , Regards ,Terry .

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classiclife
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Re: V8 250 and SP 250 flywheel differences

Post by classiclife »

Are the spacers something like this photo ??

Regards.

Richard.
Attachments
Fore + Aft Drive Plate Washer.jpg
1968 Daimler V8-250 Saloon
DLOC East Sussex Branch Secretary
DLOC 2.5L V8 & V8-250 Registrar - https://www.dloc.org.uk/v8-250
DLOC 2024 International Rally - https://www.dloc.org.uk/rally-2024

TWF
Posts: 126
Joined: Wed Mar 09, 2016 7:10 pm
Location: Liverpool

Re: V8 250 and SP 250 flywheel differences

Post by TWF »

Yes , Richard, just one behind the flywheel, this has the effect of pushing the flywheel and clutch assembly towards the clutch release bearing so I think it must be there to help with the operation of the clutch, but I am not sure if the flywheel bolts go all the way into the crankshaft? Regards Terry

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classiclife
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Re: V8 250 and SP 250 flywheel differences

Post by classiclife »

Terry,

When I did my manual conversion from an auto, these 2x spacers were included in the kit - however they were not required and remained unused.

In fairness, I have the conversion kit from Conversion Components in NZ, using a modern Toyota 5-speed g/box.

Regards.

Richard.
1968 Daimler V8-250 Saloon
DLOC East Sussex Branch Secretary
DLOC 2.5L V8 & V8-250 Registrar - https://www.dloc.org.uk/v8-250
DLOC 2024 International Rally - https://www.dloc.org.uk/rally-2024

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Brooksy
Posts: 40
Joined: Thu Feb 11, 2016 1:08 am

Re: V8 250 and SP 250 flywheel differences

Post by Brooksy »

For reference, the SP has a 96 Tooth flywheel for the manual , where as the 250 Saloon has a 104 Tooth flex plate for the auto and a 104 tooth flywheel for the manual. So the SP flywheel is smaller in diameter than the saloon one.

The positioning of the starter motor is different between the two cars for this reason, albeit the same starter motor is utilized for both applications. Same pitch etc.

The spacers are required for the auto as the flex plate is considerably thinner than a flywheel and requires spacing out from the backing plate and motor. The ring gear on the flex plate is however about the same thickness as the flywheel as I recall.

What some have done in the past is take the ring gear from the auto saloon and sweat it onto a "flywheel" or solid steel plate so as to maintain the same starter motor position as the auto and the same bellhousing. In some cases this was done to a thinner steel plate thereby requiring the spacers to still be utilized so as everything cleared the backing plate and engine. This may also be the case with the kits available from NZ and Aust if they are providing a new flywheel as part of the kit.

Regards
Regards

Brooksy

1962 SP250 Ex Met Police 104035

TWF
Posts: 126
Joined: Wed Mar 09, 2016 7:10 pm
Location: Liverpool

Re: V8 250 and SP 250 flywheel differences

Post by TWF »

Hi, thank you for your replies ,i have identified the flywheel as being the correct one for the V8 250 engine ,it has 104 teeth on the ring gear and the correct part number is stamped on the outer edge, therefore i am not going to put the spacer back and once the engine is in i will bleed the clutch and make sure it operates correctly before i fit the carbs, disi,etc( fingers crossed) Regards ,Terry .

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