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today we managed to put on some new tie rods and finishing off the coilover suspension system installation. During the process the brake caliper was also taken off and resealed/ reconditioned a little bit. Definitely one step closer to its first proper run.
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Since I work at Mazda, I'm really happy that the Miata has become part of this wonderful garage.😀
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Monomille Engine assembly AH 1000
These blocks were produced to a special bore. They were designed from the original 600 to increase to 1000 CC. It would be nice to know the exact numbers produced.
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We've finally got most of the exterior lighting working. There were quite a few missing wires and a lot of bad terminals to sort out, but it's great to finally see all the lights functioning again.
Now that the electrical work is mostly behind us, it's finally time to start tackling some routine maintenance. I have a few questions and would really appreciate any advice from those who have been down this road before.
1. Front brake pads
The car has an 850 front disc brake conversion, but the box of spare parts that came with the car includes a set of brake pads that don't seem to fit. Does anyone know what calipers are commonly used for these conversions, or what brake pads I should be looking for?
2. Tires
The car is currently running 13-inch wheels with 155/70R13 tires. They're more than 20 years old, so they'll definitely…
36DCD is a good carb, I have one on my RM. You will also need the correct manifold. It seems to attach the same as a Fiat 850 carb.
Many Abarth's have the front spring turned over to lower the car so you may be able to raise it with another spring. The rear is more complex as you need to keep some negative camber back there.
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So after a bit more time, we managed to restore some of the brakes in the car. The first half of the pedal feels very soft, but the second half actually has pretty strong braking power. I’m wondering if there’s anything that could fix that issue.
I’m also sharing some engine photos and would love to know a bit more about this particular setup. I also have photos of many of the spare parts that came with the car — if you have any information or knowledge about any of them, I’d really love to hear it.
Thanks!
Sid.
Once the brake pads wear down and bed in to the drum, I think the braking feel will become more solid.
The photo of the engine is interesting. The crankshaft, connecting rods, and pistons look like they’ve been modified in some way. It would be nice to see a larger photo.👍
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Hi everyone,
I’m a new member from Japan and recently became the owner of a double bubble earlier this year. I’ve been enjoying the car a lot so far.
I would love to learn more about its history, so if anyone recognizes the car or knows anything about its past, please give me a comment or contact me. From what I’ve been told, this car was imported from the United States to Japan around 2019.
Chassis number: 671489
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Hi everyone, nice to meet you here. My name is Sid, and I’m the new owner of 850SS Record Monza z#66.
I’m very new to Abarth and Fiat ownership. Currently the car has no brakes at all, and none of the lights on the car are working either. We suspect the brake master cylinder may have seized after sitting for many years.
I’m looking for any information or resources related to the electrical system, lighting, and brake system for this car. Any manuals, wiring diagrams, parts references, or technical advice would be greatly appreciated.
Thanks in advance!
Well my last comment was WRONG! Seems to be happening more often as I near 80 (Sunday). The PBS at the rear is the late sump. The early one had a small PBS logo on the upper exhaust side.
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What is the approximate value of a 1958 750GT Double Bubble unrestored engine or transmission that is not running due to its sitting in storage? Are either hard to find?
I think I would look first for an original Mille miglia crankshaft and confirm the condition. The crankshaft will have stamping such as month and year for the date and an identification number.. I think one of these in usable condition is the most important first step
An engine block that has been machined to accommodate that crankshaft, and in other ways Would be next and it should be based on the first series, Fiat 600 motor that was originally 633 cc but enlarged to accommodate the Mille miglia crank shift and larger cylinder bores
I think for the double bubbles it was only the later cars where you could match a cylinder block identification number with an original Abarth ID plate on the car.
I think most of the double bubbles did not have an original Abarth ID plate but again there are some that evidently do that, I believe to be later ones.
Also, I would look for attributes such as Weber 32 IMPE Carburetor and larger valves and the cylinder head. Should like the block be of the earlier type based on the Fiat 633 series one 600 motors.
The ideal would be if you could match the motor number to a chassis by contacting John DeBoer
As above you want to ensure that the motor is based on the original Fiat 600 633 cc series one motor. The 600 D motors are quite different in very important ways, particularly the lubrication system. I think the two easiest ways to identify this is 1) the cylindrical extrusion from the cylinder block under the headers behind the fuel pump, which you will find on the early 600 block and also of course a regular crankshaft pulley as opposed to the centrifugal oil filter pulley on the 600 D motors.
If you can get an original 600 manual or copy of one which are found on eBay and Amazon, you’ll see the great majority of it is relevant to the series 1 600s but there’s a section at the end relevant to the 600 D motors
I hope this helps!
That’s a really interesting project.
The parts are very well made, too.
I’m really looking forward to seeing how it performs.