Bogging at 4000 rpm

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Bogging at 4000 rpm

Post by AJL Electronics » Fri Jan 12, 2018 2:42 pm

R7 is under spec for fuel injection. R9 minimum, but Biohose is the best you can buy, it even copes with 100% Ethanol.


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Bogging at 4000 rpm

Post by 747PETE » Fri Jan 19, 2018 8:27 pm

If it’s any help,I bought at great expense some of Gates Barricade hose,supposed to be the very,very best...alas it delaminates internally,not perished.I solved it all by getting the aforementioned Biohose from Andy.I too would never use the braided variety,they look very nice but believe me when they eventually let go,the braid acts as a shroud and you get fuel pouring from the whole length of the hose.How do I know......I had a whole garage floor flooded when the fuel line decided to set itself up as a siphon..not the Scimitar though.



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Bogging at 4000 rpm

Post by DARK STAR » Sat Jan 20, 2018 8:03 am

Thanks all, the project is on hold until it gets warmer (yes, even here it is cold - but nothing like the UK).
I may do the return with the Gates and the feed with Andy's magic stuff.


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Bogging at 4000 rpm

Post by DARK STAR » Sat May 26, 2018 7:07 pm

Wow, is it really four months since I did anything to the car?
I've been out in it a few times, almost getting used to not accelerating :roll:

Anyway, we were discussing cars in my local and where to get parts and I said 'AD Motor Factors' :idea:
Why I didn't think of them before I don't know.
So I trotted off to see them and found they have Gates Multi-Fuel at 9,14 euros a metre inc tax.
Being from Yorkshire that made the decision easy.

With a bit of 12 mm as well, and two jerry cans I got under the car and most went to plan.
The state of the old hoses under the shiny pristine stainless steel braiding is horrifying.
I took the opportunity to turn the petrol pump and filter 180º, they had been fitted Ford-fashion with u-bends all over the place.
I cleaned the filter again, the dirt accumulated in a few hundred kilometres was amazing.
8 mm tubes fitted and ready to run.
12 mm - er hang on, there's another adaptor to the pipe from the tank which says it is 5/8 of a ninge, so 15 or 16 mm.
Thought I'd cut it back and run the new 12 mm almost to the tank.
But it is armoured, with a steel mesh inside the rubber, and I can't get my angle grinder in the space.
Thought I'd take it off and cut it, but I can't see any way of undoing the exotic blue anodized union (where on earth did that come from?) because I can't get a big spanner in either.

So it is still there while I think about it, everything is back together and operational but I haven't had time to do a road test yet.

Next job appears to be the gearbox input shaft bearing which is audible in the car - and deafening under it.
Oh dear.
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Bogging at 4000 rpm

Post by DARK STAR » Sat Jun 23, 2018 4:05 pm

Perhaps I should clean that exotic blue union, and paint the rusty bit in the photo, whatever it is.

Anyway, another month down the road I took the car out for a road test and
BLISS it is back to normal.
On the slip road to the expressway I was up to 130 km/h before braking to merge in to the flow ('expressway' limit 50 ahem)
and finding myself at the head of the traffic lights on the route de Nice I couldn't resist leaving (slightly wiggly) black tracks for about 50 metres on the green :mrgreen:

Must get out into the back country for a blast.
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Bogging at 4000 rpm

Post by philhoward » Sat Jun 23, 2018 5:27 pm

So - what do you think was the real root of the problem after all this? The fuel hose breaking down?


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Bogging at 4000 rpm

Post by DARK STAR » Sat Jun 23, 2018 5:56 pm

I can't remember the beginning of the history but changing the fuel hoses has certainly sorted everything out.
I still haven't changed the first metre of hose which is 16 mm armoured steel and will probably outlive me.
Incidentally this has nothing to do with ethanol as I always use ethanol-free petrol, still available in France at a price.

I think it was probably two problems at the same time, which is why it was so difficult to analyse.
What they were exactly is hard to say but changing EVERYTHING sorted it out in the end 8)


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Bogging at 4000 rpm

Post by Oldconn » Sun Jun 24, 2018 8:18 pm

Good to hear,Chris. Where are you finding ethanol-free petrol? What brand is it,please?


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Bogging at 4000 rpm

Post by DARK STAR » Sun Jun 24, 2018 9:02 pm

I think all service stations round here have it, it is just 98 octane normal petrol.
There is no ethanol in that.
I did have a tankful of cheaper stuff in the GTC once because there was no 98 octane in the Beaujolais (if you see what I mean 8) )
so perhaps it is not found everywhere.


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Bogging at 4000 rpm

Post by scimjim » Sun Jun 24, 2018 9:07 pm

Pretty sure that SP98 in France still has ethanol - only 5% as opposed to the 10% in SP95. The trouble is, there’s no international standard anymore.


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Bogging at 4000 rpm

Post by DARK STAR » Sun Jun 24, 2018 9:39 pm

95 octane is marked 'with ethanol', 98 octane isn't.
Of course, they are capable of slipping some in without mentioning it :roll:


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Bogging at 4000 rpm

Post by scimjim » Sun Jun 24, 2018 9:59 pm

All petrol now contains up to 5% ethanol as stipulated by the European fuel specification EN228 legislation. Lots of it is E10 now.


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Bogging at 4000 rpm

Post by Oldconn » Mon Jun 25, 2018 7:46 am

Well,whatever, the nearest 98octane around here is 15kms away, so I guess I'm condamned to run on 95, which seems OK in an Essex, but I can understand it would be a problem for the later engines.


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Bogging at 4000 rpm

Post by philhoward » Mon Jun 25, 2018 7:48 am

98 is possibly "preferred" for an Essex but purely because it's closest to the original 4-star fuel. They seem to run fine on 95 as a rule.

The Ethanol content is another matter entirely :w


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