Alfa Romeo Forums banner

1 - 12 of 12 Posts

·
Registered
Joined
·
700 Posts
Discussion Starter #1
On the 74 Spider it's located to the rear passenger side of the block, with not much room to work...And no easy "grips" for a wrench.

As I'm going to replace it, do I just ruin the current one in removal? Or is there a trick? Thanks - Dickson
 

·
Registered
Joined
·
348 Posts
I think Alfa had a special tool for this but I made my own with a cheap wrench that I cut ,bent & ground downCan't find it ATM or I would send you a pic
 

·
Registered
Joined
·
59 Posts
Had to share this: On my '91 S4 the original sensor is 14mm. Who'da thought!? Here's a photo of my tools to remove and the size of the replacement sensor (17mm). I had to sacrifice a 14mm wrench and a 17mm wrench to do the replacement. Oh, and a rare photo of an Alfa showing "normal" oil pressure on its very own gauge!
 

Attachments

·
Registered
Joined
·
357 Posts
I have also taken a hacksaw to a 14mm and a 17mm spanner in my efforts to remove/replace oil pressure senders.

On my car (69 1750) there is enough room to get down the back of the engine - assuming the rubber vacuum pipe is removed.

But beware of dropping a spanner so that it becomes wedged between the starter and the block. This happened to me just this week and it took me nearly 2 hours to get it free. (I subsequently tied a piece of string to the spanner - short enough to prevent it falling too far).
 

·
Registered
Joined
·
9,400 Posts
a slim 14mm wrench, about 2mm thick (or 17mm if you have that sized sender - my S4 was a Veglia, with the yellow end and was 14mm!) with your hand way down there from under the right hand side does the trick....you just need to release it, then it spins off freely with your hand.

You need a thin wrench or it won't fit between sender and engine block, or grind a normal one down to half thickness.

EDIT: Disconnect battery as you will hit the starter with the wrench!!

Replace the copper seal, which doesn't usually come with the new sender (or at least anneal it if it looks OK to re-use)

this is the original alfa tool:
 

Attachments

·
But Mad North-Northwest
Joined
·
11,618 Posts
The bike shop wrench is called a cone wrench. It's just stamped out of steel.

I have one I cut short. I stick it on the nut and tap on the end using a socket extension and hammer.
 

·
Premium Member
71 Berlina 74 GTV 17 Giulia Q4
Joined
·
6,632 Posts
x2 on disconnecting the battery
 

·
Registered
Joined
·
1,816 Posts
x2 on disconnecting the battery
I hate it when I put a burn spur on a good wrench---

I need to change mine out--it's on the master list
 

·
Registered
Joined
·
282 Posts
The cone wrenches are a good idea. I always look to my bicycle toolbox when a special tool is called for. I used a 32mm headset wrench for the radiator fan on my fiancee's BMW. Saved me $30.
 
1 - 12 of 12 Posts
Top