Stuck in reverse!

Standard & modified running gear

Re: Stuck in reverse!

Postby MM » Mon Mar 21, 2016 4:05 pm

Electric fan itself works when you bridge the sensor contacts (yes, I tried fitting a new sensor, to no avail.)

Radiator top and bottom hoses do get hot, so I don't think it's the thermostat, so I suspect maybe the water pump has worn out - car is a 1997 Fiat Cinquecento SX with the 899cc 100-series engine, just gone past 76,000 miles.

I also tried adding a small bottle of Kalimex K-seal, in case it was the head gasket leaking slightly, but it made no noticeable difference.

It will just about manage a 7 mile journey before steam starts gushing out the header tank (also fitted a new cap, to no avail). Worse if I get stuck in traffic. :(
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Re: Stuck in reverse!

Postby MM » Thu Apr 07, 2016 6:44 pm

Well, blow me! The Traveller rolled past the 160,000-mile mark this morning, which I thought was quite something.

Then I had to take my brother to the doctors, which involved going down a steep hill into a small village, with a level crossing, which was down, so I decided to switch off the engine and coast down some of the way.

Level crossing finally goes up, so I went to re-start - no response from the starter motor. :roll: So, I select 2nd gear, let it roll along a bit, then let the clutch out - engine now starts fine. Gently let the clutch out, and realised there's no drive to the back axle. :shock:

Tried another gear, but no joy; had to swiftly turn into a housing estate and park it up, with the aid of my brother pushing - he still made it to the doctors on time, just a short walk away.

Got the car towed home this afternoon, and after work, checked it out to see what may be wrong; started the engine (started OK this time), slipped it into 2nd gear, let clutch out - looked underneath, saw propshaft turning the diff input shaft but couldn't hear any obvious noises to give a clue as to whether it's diff or halfshaft(s).

Tried it in 4th gear instead, then the gearbox went into a spaz, whereby all I can seem to get is 3rd or 4th gear and nothing else. :? Letting the clutch out now stalls the engine, as if there's a load but the car doesn't want to go anywhere.

So, looks like I'll be needing to examine both the gearbox and back axle now, to find out what's gone wrong... :roll:
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Re: Stuck in reverse!

Postby Panky » Thu Apr 07, 2016 7:10 pm

Initially definitely a half shaft, same thing happened to be a couple of weeks ago :? Maybe a piece of broken half shaft has jammed the diff somehow.
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Re: Stuck in reverse!

Postby Plin » Thu Apr 07, 2016 9:36 pm

:o hope your brother wasn't about to have his blood pressure tested?!

Bother just when you sorted the gearing out. Hope you sort this new problem soon.
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Re: Stuck in reverse!

Postby MM » Thu Apr 07, 2016 10:13 pm

Hehe, no, he was feeling unwell with stomach pains and was given some stuff for constipation. :shock:

Well, I was intending to build up a spare gearbox anyway, and bought a new 1st gear cog to do just that, so it looks like I'll have to get it done sooner than I thought.

I wasn't expecting to have to fix problems with both the back axle and gearbox at the same time though, just as a result of doing a bump-start! :(
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Re: Stuck in reverse!

Postby Panky » Thu Apr 07, 2016 10:21 pm

Pop the diff out first and see what's going on, it could be jammed with debris so the prop is stuck too causing the engine to stall.
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Re: Stuck in reverse!

Postby MM » Thu Apr 07, 2016 10:22 pm

Good thinking, will try that - thanks.
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Re: Stuck in reverse!

Postby MM » Sun Apr 10, 2016 6:40 pm

Well, got around to doing some dismantling today to see what's what; nearside halfshaft fine, offside one snapped where it goes into the diff. :roll:

Drained the diff oil; rather low on level - only about a pint or so in there; evidence of leakage around the input pinion, maybe caused by the diff-to-casing gasket not being that good.

Removed diff; fortunately, it looks OK. Extracted the bit of broken halfshaft. That's three halfshafts that have broken on this car now, at just gone 160,000 miles - two on the offside, one on the nearside.

Gearbox seems to be stuck in intermediate gear(s), with only 3rd and 4th planes selectable, plus one other odd one which gives the impression of a 5th gear! :? Selector forks got their knickers in a twist again, I suspect. :roll:

I'll have a go at building yet another gearbox to go in, hopefully better this time...
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Re: Stuck in reverse!

Postby Panky » Sun Apr 10, 2016 8:20 pm

What a bummer of a coincidence :(
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Re: Stuck in reverse!

Postby Plin » Mon Apr 11, 2016 12:20 am

Oh drat, doesn't sound like a quick fix. Hope your next gearbox behaves better.


(P.S. I sent this from my phone using the Tapatalk thing Mick is on about in another thread)
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Re: Stuck in reverse!

Postby bmcecosse » Mon Apr 11, 2016 6:54 pm

Good thing you didn't get stuck on the Level Crossing - just as I was coming along......Might have scratched the paintwork on the Locomotive ! :roll:
 









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Re: Stuck in reverse!

Postby MM » Mon Apr 11, 2016 8:08 pm

Indeed - could have been worse! Oh well, at least I can get in some good gearbox removal/rebuilding/refitting practice...
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Re: Stuck in reverse!

Postby MM » Mon May 02, 2016 5:40 pm

Happily, a few hours of work this weekend have resulted in the car back up and driving again; I had to fit a replacement halfshaft and diff seals, and poking about in the gearbox via the drain plug (with the side inspection hatch removed so I could see what I was doing) with a long screwdriver freed off the reverse gear fork which had somehow become stuck, causing the weird gearbox issue with being stuck in forward and reverse gears simultaneously.

Quite a relief not to have to remove the gearbox again.
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Re: Stuck in reverse!

Postby Panky » Mon May 02, 2016 6:19 pm

Excellent, no more coasting for you ;)
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Re: Stuck in reverse!

Postby MM » Mon May 02, 2016 6:57 pm

Absolutely - will have to treat it with kid gloves from now on! :tweety:
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