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Discussion Starter #1
Hey Folks,

Finally got my engine running on my 86 Spider! After some around the block confidence drives, ive noticed some strange grinding. I thought that it may be my front passenger wheel bearing (checked working), but fear it may be something worse. I hear a grind / rattle when turning sharp left, something like going around a parking lot light post or hard corner, as well as loading up first gear going up a hill. Its not slipping, but is causing great concern for me. I don't want to damage anything or go backwards on making my barn find work. The Spider was sitting for several years and entered a non functional condition. Ive replaced most of the electrical, hosing and ECU allowing the car to run and idle very smoothly (from guidance and documents on this forum - THANKS!). I'm hoping that someone can point me in the right direction to address this issue. Electrical and pressure, no problem, but its my first day on gearing and mechanical. Any advise is very much appreciated!

Thanks in advance,
Austin
 

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How did you check the front wheel bearings? When you turn a sharp corner that loads up the outside wheel bearing a lot more than simply jacking up the front end and spinning the wheel. Also, the Alfa rear axle has sealed-for-life outer axle bearings. 'For life' meaning they are not repairable when they fail - you have to replace them.
 

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Check the motor mounts. Also if you have an oil pan guard check and make sure the pan is not hitting it or almost hitting it.
 

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Discussion Starter #4
Hey Guys,

My check of the wheel bearings was a bit of a visual inspection for discoloration or metal warping. When I am coasting or driving in 3 or 4 I don't get any wheel noise. That said I went on a bit longer of a test drive after changing my transmission oil as I thought that could have added to the issue. During that drive, I'm leaning to a break issue. Pads are low (not out) and I'm thinking that they the left one is getting stuck. I'm going to try and pick up some new pads and do more of a full inspection.

As far as the pan guard goes, I do have one and it looks like someone tried to modify the spacing with extra nuts... Definitely not the original setup. I think that could have something to do with the rattle noise as well. I may try and take that off completely and see if the issue persists or resolves.

Ill keep posting my findings. Thanks for the input!

-Austin
 

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Discussion Starter #5
Here is a quick Youtube video of the noise. Not sure if that will spark a thought, just throwing it out there.


As always thanks for any input!

-Austin
 

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Hey Guys,



As far as the pan guard goes, I do have one and it looks like someone tried to modify the spacing with extra nuts... Definitely not the original setup. I think that could have something to do with the rattle noise as well. I may try and take that off completely and see if the issue persists or resolves.


-Austin
The spacing it down with nuts between the pan guard and body. Is usually down when the motor mounts are worn out so they lower the pan guard to get it away form the engine.
 

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Discussion Starter #7
Hey Guys,

I was able to remove the guard and also performed a brake job. A bit of tin rattle and noise appeared to resolve, still having the loaded engine grind. It sounds like it is coming from directly under the cabin, something like a bearing maybe? Gearbox has fresh oil now, should I look into swapping the diff or any other "easy" fixes before pulling drive train apart? Unfortunately I'm not a skilled mechanic nor do I have a lift so that may be a next summer project.

Thanks in advance for any advise!

-Austin
 

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Discussion Starter #9
When I was under for the brake lines, I zipped in a few more screws to the heat shield which had fallen. Unfortunately, not the grind. Its very possible it's the bearing, would that only make noise when loaded? Is there a way to diagnose with a visual inspection?

Thanks!
 

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Discussion Starter #10
I had another drive my Spider to try and diagnose the grinding. He mentioned that the shift knob moves around a lot while in gear. Not sure if that helps narrow down a part or location of troubleshooting, but wanted to toss it out. Still cannot tell where about the noise is coming from.
 
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