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Build
Diary
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After
getting the engine fitted at the last big push I was keen to get
the engine bay sorted so that I could start it so I concentrated
a lot of my effort during this work period on that.
I
started by mounting the radiator and radiator fan so that I could
get all the water hoses plumbed in. This required me to make several
brackets as the radiator in the MK2 Panda is completely different
from the one in the MK1. This took quite some time, however, the
end result is very neat and I'm quite pleased with it. As well as
mounting the radiator and fan I also had to decide where the expansion
tank would be located. I wanted to locate it as closely as possible
as it would have been in the Panda and achieved this quite easily
by mounting it on the wing next to the suspension turret. This required
me to make another bracket as the tank is shaped to fit neatly into
the area between the turret and inner wing of the Panda. Again,
considerable time was spent designing and making a bracket but it
now looks like it was meant to go there. During fitting the expansion
tank I had to fit the bonnet to check that there would be no clearance
problems. It's very very close but the tank fits exactly as it should.
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Expansion
tank bracket.
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doing the radiator/fan/tank work I also started on the wiring. This
was (mainly) quite straightforward as I'd labelled up the loom as
I removed it from the donor Panda. Once the loom was in place with
the engine compartment part of the loom through the bulkhead and loosely
placed in it's original position it became apparent that some work
would be needed to make it fit properly. Some engine bay components
could not be placed in the same position relative to the wiring loom
as they were in the Panda so the loom needed to be unwrapped and some
wires rerouted to new positions. This took considerable time and patience
as I wrapped the loom back up properly once all the wires were confirmed
in their new positions. This required temporarily fitting the washer
bottle, heater, coil and battery and repeatedly fitting and removing
the bonnet to check clearances. Once again, it was time well spent,
as the loom now looks like it was custom made for this application. |
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With
the loom and most of the engine components bolted in I only had
to fit the distributor cap and rotor arm, and put in the fuel lines
from the tank to the petrol pump in order to start the engine. It
was a big moment in the progress of the rebuild. Unfortunately it
was quite a let down as the car would not start. After making a
few simple checks it was decided that either the distributor or
coil was at fault because there was obviously petrol being pumped
through the carb but there was no spark at the plug. This meant
that I had to spend some time trying to find a scrap yard that had
a suitable Panda in with the required parts still on it. It took
half a day but I finally found one about 20 miles away so I went
there straight away to get the parts. It was an injected model and
the coil was slightly different but I bought it anyway, along with
some of the wiring that I hoped I would be able to patch into mine,
along with the distributor. Once home again I firstly changed the
coil with the wiring temporarily jury-rigged but still got no spark
when trying to start the engine. I left the replacement coil in
place and then changed the distributor. This time the engine cranked
over a couple of times then burst into life and ran beautifully!
This put a great big smile on my face I can tell you. I then put
the original coil back on and tried again. The engine still started,
confirming that the distributor was faulty. I didn't run the engine
for long as at this point there was only a small amount of oil in
the engine and no coolant at all. But now that I had the engine
running I changed the oil, temporarily fitted the heater (yet again)
so I could fill up the cooling system and drained and refilled the
gearbox with new oil. At this point I was almost ready to test drive
but I wanted to sort out the brakes first.
I
had previously bought most of the components I would need to completely
overhaul the brakes so I got on with fitting new front callipers
and pads, new rear drums, brake cylinders, shoes and brake overhaul
kits, which contained new springs, retaining clips etc. Once this
was done I needed to go shopping for some copper brake lines, flexible
hoses, fittings and a tool to flare the pipes with. It didn't take
long then to fit new brake lines throughout, as the braking system
on the Panda is very simple. Once this was done it was quickly filled
with new fluid and bled using an Easibleed kit. Once again, a problem
arose in that the brake pedal still felt exactly as it did before
the brakes were overhauled. It sank to the floor with no apparent
effect at all. Repeatedly bleeding the system to make sure I'd eliminated
all the air was no use. I finally had to drain all the fluid and
remove the brake master cylinder to check it. Once off the car it
was obvious that it had seized in the fully extended position and
would no longer be of any use. I didn't manage to get hold of a
replacement this trip so the brakes had to left until the next time.
However,
I still wanted to see if the car would drive OK so I threw a toolbox
into the cab to sit on, started the engine and very (VERY) carefully
edged out of the garage. If I needed to, I had the handbrake to
stop with. All seemed fine so I drove the car around to the front
of the house very slowly and parked it on the grass to photograph
it. This was an important moment in the rebuild and gave me a massive
confidence boost. Once I'd taken the photos and published them on
the Fiat Forum I went to drive the car back into the garage. This
was when major disaster struck. Reversing the car up a slight incline
in order to turn around there was a loud crunching noise and the
whole car juddered. I immediately stopped and climbed out to see
if anything had collapsed. I was imagining the suspension collapsing
or an engine mount giving way but I couldn't see anything out of
place so I tried it again with the same result. I still couldn't
see what was wrong so I called in my brother to help. After a while
I thought I could work out what was going on but I had to remove
the passenger drive shaft to confirm it. I was right; the drive
shaft kept popping out at the diff when under load. This damaged
the tripod bearing on the end of the shaft so it will need to be
replaced. It seemed that the tripod bearing did not protrude into
the diff far enough to be secure. I thought that there might be
differences in the length between MK1 and MK2 Panda driveshafts
and tried to find out by asking on the Fiat Forum and referring
to the Haynes and Porter manuals. Nobody seemed to know.
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The
following day I thought I'd have a good look at the engine and gearbox
mounting arrangements and made the discovery that the bracket on
the gearbox which attaches to the bottom mount is longer on MK2
Pandas. I'd fitted the gearbox complete with bottom mounting bracket
from the MK2 Panda, assuming them to be the same. So I cleaned up
the old bracket and fitted it, with the result that the bottom of
the engine swung back about 10mm. A trial fit of the driveshaft
revealed that this had allowed it to fit slightly further into the
diff, but still not enough. I then turned my attention to the custom
engine mount I'd had fabricated. I loosened it and tried to lever
the engine sideways, towards the gearbox. This gave me about 5mm
movement, allowing the driveshaft a little more protrusion into
the diff. I still wasn't happy though so I took off the custom mount
and modified it slightly by cutting down the rubber and sleeve to
give a 5mm drop on that side of the engine. With all these adjustments
the driveshaft now seems to sit in the diff a lot further but I'm
still not sure it's enough. I had to leave it for this trip though
as this was near the end of the time I had off and couldn't get
any parts. It was quite frustrating, as with that and the brakes,
I was so close to being able to drive the car properly. The next
trip will see a proper test drive!
As
I couldn't get on with the major stuff I tackled a few smaller jobs
to keep the rebuild progressing. Without going into too much detail
I managed to achieve the following:
Cut
a circular metal plate to fill the hole in the side panel where
the fuel tank filler neck locates. I cut a hole in the plate the
correct size for the filler neck to fasten into and riveted it in
place, and finally located the filler neck.
Manufactured
a set of brackets to utilise the tailgate struts to open and hold
the bonnet. Only one is fitted now as I only had one serviceable
strut but all the brackets are in place ready to fit a second one.
Finally
fitted the coil and washer bottle.
Trial
fitted the exhaust to work out where to locate new mounts as the
existing mounts don't work very well on the chassis. Also shortened
it by approximately 12" by cutting the tailpipe. Also cut off
the existing rear mount welded to the underside of the load area.
Trial
fitted the dashboard pod. This allowed me to work out exactly where
I would need to drill for the mounting bolts (easier and more secure
than using the self tapping screws it's fitted with in the Panda)
and locate the dashboard wiring.
The
final couple of small jobs done before putting the car away this trip
was to paint the inside of the bonnet, rub down some corrosion on
the chassis, and paint the cleaned area with silver Smoothrite. |
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