Hood motor cog problems. - Alfa Romeo Forum
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(Post Link) post #1 of 9 Old 22-05-16 Thread Starter
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Hood motor cog problems.

I started to have some problems with the hood not closing properly, so i checked all the microswitches which seemd fine. Next i thought i would tension the cables for the cover clamps, tried the switch again and got no movement and a loud grating of gears form the hood motor.The first pictureshows the remiaing pieces of cog which somebody in the past had araldited to the black plastic part. I checked this forum, and eventually ordered a remanufactured cog from the Guy in Hungary on Ebay. Well, it arrived last a couple of days ago, it was with some trepidation that i fitted it. Then following advice found on this forum adjusted the cables correctly, and adjusted the mesh of the worm gear. The first time i tried, it just stopped. So again following advice found her, i ran throug a manual open and close. Then turned off igition, started engine and tried again. It works
Proof yet again of how brilliant this forum is. Thanks all.

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(Post Link) post #2 of 9 Old 02-06-16 Thread Starter
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Unfortunately after opening and closing roof approximately 30 times, the new cog has stripped its teeth.
Anybody else had experience of these cogs from Hungary (Budapest)?
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In case you aren't aware of this.
Then a German company is selling the gear cog made in aluminum.

Gute Nachrichten für Alfa Romeo Spider Fahrer « Willkommen bei Alfisti-Shop.eu
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Might be worth some investigation though. The eBay cog is stronger than the original so something must be loading it up excessively. Also insure the meshing its in place correctly.
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Quote:
Originally Posted by Henrik_45 View Post
In case you aren't aware of this.
Then a German company is selling the gear cog made in aluminum.

Gute Nachrichten für Alfa Romeo Spider Fahrer « Willkommen bei Alfisti-Shop.eu
Or here: NEW Gear Wheel for middle Soft Top Motor 60621817 6063054, 99,00 &eur. I have used Corseart - good company.
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Quote:
Originally Posted by Mitch916 View Post
Might be worth some investigation though. The eBay cog is stronger than the original so something must be loading it up excessively. Also insure the meshing its in place correctly.
+1

Search for a thread on here that describes how to take apart the motor. It also describes an adjustment that stops the bar smashing against the stop that puts pressure on the teeth http://www.alfaowner.com/Forum/images/smilies/wink.gif
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(Post Link) post #7 of 9 Old 04-06-16 Thread Starter
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Yes, i have seen the post describing adjusting the load on the motor shaft and the cable adjustment. I have turned the gear and readjusted the shaft. I have also put a small piece of sponge foam on the metal stopto cushion the impact. I do wonder if it is the bimetallic switch (that stops the power to the motor when the current draw goes up as it hits the end stop). Anyway, fingers crossed.
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(Post Link) post #8 of 9 Old 28-07-16 Thread Starter
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Originally Posted by Dralf1965 View Post
Yes, i have seen the post describing adjusting the load on the motor shaft and the cable adjustment. I have turned the gear and readjusted the shaft. I have also put a small piece of sponge foam on the metal stopto cushion the impact. I do wonder if it is the bimetallic switch (that stops the power to the motor when the current draw goes up as it hits the end stop). Anyway, fingers crossed.
After another 30 or so openings and closings it has stipped again. I will look into getting the load switch in the motor checked out. There was a thread on here somewhere showing it, just need tio find it.
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Recently thought I might need to go down this route and found this when searching online (I know nothing about the company), which claims to be tougher than the original.

Alfa Romeo Alfa Romeo 916 Spider Roof Lock Motor Replacement Gear Cog 1995-2003

In my case it must have been the "rubber mallet" that sorted mine, well for now at least.
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