A few questions about SE5

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Velo
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A few questions about SE5

Post by Velo » Mon Dec 10, 2018 5:15 pm

I've recently purchased 1971 SE5 in good order. I am new to all things Scimitar, so have been busy acquiring knowledge. Some of what I've read has drawn me to ask advice from this forum:
1. I've read that the timing gear on the Essex engine is a weak spot. The engine runs extremely quietly so I'm guessing it still has fibre timing gear. Should I replace them ? and if so should I go for steel or alloy ? (I will not be tuning the engine)
2. I've also read that the petrol pipes can break/crack. Is the safe option to replace the pipes with flexible pipes for routing between the carb and the fuel pump. Should any other pipes be replaced at the same time ?
3. My SE5 has Wolfrace wheels fitted with 195x14 tyres whereas I think the original tyres were 185x14. I've read that wider tyres can put excessive load on the steering. Are the 195x14 regarded as ok fitment ?
I would be grateful to have any advice on the above, thank you !



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A few questions about SE5

Post by scimjim » Mon Dec 10, 2018 5:41 pm

Welcome :P

Timing gear should definitely be replaced - alloy apparently is quieter than steel.

Flexible pipe should be replaced with new pipe that can take modern fuel with ethanol - tank to nylon line, nylon line to pump, pump to carb and same for return lines if fitted.

195 and 205 width tyres are often fitted but might make the steering heavier. You can still get 185 but finding 80 profile is harder if that bothers you.


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A few questions about SE5

Post by b.c.flat hat » Mon Dec 10, 2018 5:42 pm

Hi Velo.
Cam shaft gear should be upgraded to ali or steel, take the fuel pump off to see it inside. If it's not metal then I'd strongly recommend changing it.
Petrol pipes from pump to carb are usually rubber, make sure they are all ethanol resistant. They are black plastic from tank to pump with rubber joining bits at each end.
I've had mine ages and it's only heavy at slow parking speeds but personal choice of tyres is very subjective, enjoy driving it and have fun.
Crusty the Ancient.



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Roger Pennington
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A few questions about SE5

Post by Roger Pennington » Mon Dec 10, 2018 6:10 pm

Hi Velo and welcome :D

1. Yes, I'd recommend changing the gear for either steel or alloy. There are already too many tales of stripped gears on the forum. In my experience, anyway, alloy is quieter.

2. AJLElectronics on the forum sells ethonol-proof flexi pipes.

3. 195/70x14 is a popular replacement size, so should probably be ok. I've used them in the past.


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peter freeman
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A few questions about SE5

Post by peter freeman » Mon Dec 10, 2018 7:28 pm

Definitely change the timing gear, ally is quieter but I have steel which is also not that noisy - luck of the draw. Also as advised change the rubber fuel pipes with at least R9 ones as ethanol will destroy them eventually ,it does the carb no good either - use super ron 97 minimum fuel or better if you can get it. I run on 195x65x14 tyres and you can fit EPAS steering if you think the steering too heavy - I have fitted MGF EPAS to two 5A'sm two 1800TI's and a TVR S3



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Dennis Nicholas
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A few questions about SE5

Post by Dennis Nicholas » Wed Dec 12, 2018 11:15 am

Velo wrote:
Mon Dec 10, 2018 5:15 pm
3. My SE5 has Wolfrace wheels fitted with 195x14 tyres whereas I think the original tyres were 185x14. I've read that wider tyres can put excessive load on the steering. Are the 195x14 regarded as ok fitment ?
I would be grateful to have any advice on the above, thank you !
Velo have a look at the NOV 4th discussion TYRES AGAIN for a fuller story. here

Sorry Jim I still don't know how to do a link like you do saying "here

fixed it for you :D

Dennis


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1980 GTC Trafalgar Blue, 2010 basic Skoda Yeti (petrol), Austin 7s, Rileys.

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A few questions about SE5

Post by paintman » Tue Dec 25, 2018 11:47 am

Is the pinning of the carb inlet pipe still recommended if of the type that's just pushed in (IIRC 40DFAV?)

One of the first things I did on my 1970 SE5 as recommended in Slice - & a good job it was too as it wasn't exactly tight!
No8 self tapper & hylomar seems to ring a bell but it was 35 odd years ago.



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peter freeman
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A few questions about SE5

Post by peter freeman » Tue Dec 25, 2018 6:15 pm

I have used 195 tyres since 1983 - even tried 205s but did not like them as much - never tried 185 so cannot comment on the original spec. 195 have never caused any problems for me. The original pinning of the fuel pipe was done with a mills pin.
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A few questions about SE5

Post by paintman » Tue Dec 25, 2018 10:48 pm

Mills pins. Never heard of them before. Every days a school day!
That looks like some sort of kit with non-standard Mills pins adapted for the purpose?

The drill & use a screw & sealant was in one if the Slices that I bought as a 'bumper bundle' when I joined which was in the very early 80s. Sold the car 1985ish as three small children & 2 adults into an SE5 didn't work - we hadn't got any children when I bought it :)



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A few questions about SE5

Post by peter freeman » Wed Dec 26, 2018 9:15 am

Screw works just as well -mills pins are probably assigned to the past now.



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