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Author Topic: Fulvia coupe/ Kangaroo  (Read 234 times)
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fulvia815
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« on: 12 September, 2018, 04:54:04 PM »

Could really do with some advice please.
Just at the end of a 4 year restoration on my 66 fulvia coupe s1 1200. Everything is done apart from a problem with kangarooing going forward. Its fine at rest or in reverse. Had new distributor  coil and refurbed  carbs together with an electrIc fuel pump.It doesn't seem to be a fuel problem as we have bypassed the fuel tank.
We're thinking it maybe a dodgy wire as the engine tilts differently on forward and reverse . Any ideas ?
Dave
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fay66
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« Reply #1 on: 12 September, 2018, 08:26:56 PM »

Could really do with some advice please.
Just at the end of a 4 year restoration on my 66 fulvia coupe s1 1200. Everything is done apart from a problem with kangarooing going forward. Its fine at rest or in reverse. Had new distributor  coil and refurbed  carbs together with an electrIc fuel pump.It doesn't seem to be a fuel problem as we have bypassed the fuel tank.
We're thinking it maybe a dodgy wire as the engine tilts differently on forward and reverse . Any ideas ?
Dave
Did you replaced all the engine and gearbox mountings? sounds a bit like drive line shunt which was fairly common in that era of cars,
Something worth considering, even if it isn't your problem.
Brian
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Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
1999 Suzuki Wagon R+ GL, now my daughters
2006 Renault Megane 1 5 Dci Sports Tourer
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Scott
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« Reply #2 on: 13 September, 2018, 07:59:03 AM »

Kangarooing would normally be caused by some fuel/air issue e.g. a semi blocked fuel filter where at light loads (idle / reverse) things seem okay but at heavier loads not enough fuel can get through. Definitely worth double checking the fuelling and any compromised gaskets.

How severe is the kangarooing? It might be worth me recounting a problem I had many years ago after a service at a well known Lancia specialist. Leaving their premises and everything was fine but not long after there was this bad kangarooing which seemed to rectify itself before happening again. It turned out that one of the threads to a screw for the points had been damaged slightly. Because the points were then not seated properly it was causing some, um, interesting timing issues and the kangarooing.
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davidwheeler
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« Reply #3 on: 15 September, 2018, 04:29:55 PM »

Original size slow running jets are too small for modern fuels so that may be part of the problem???  Easy enough to increase the size experimentally.
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David Wheeler.  Lambdas, Aprilia, Fulvia Sport.(formerly Appia and Thema as well).
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