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Mr Riviera

RIVIERA RATTLE - FIRST GENERATION - CAUSE AND REPAIR

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Mr Riviera    23

The infamous Riviera Rattle - 1st. Generation - This problem keeps coming up and while most agree that its the fuel lines causing the rattle , I would like to have some folks comment on where they found the problem and the fix . I have never had the problem but many have . Seems that its only A/C cars . This has been covered in the Review in the past but not detailed facts as to what the owners found and the fix . Hope you can help guide those that have the problem .

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Mr Riviera    23
The infamous Riviera Rattle - 1st. Generation - This problem keeps coming up and while most agree that its the fuel lines causing the rattle , I would like to have some folks comment on where they found the problem and the fix . I have never had the problem but many have . Seems that its only A/C cars . This has been covered in the Review in the past but not detailed facts as to what the owners found and the fix . Hope you can help guide those that have the problem .

Any comments from Tom M , Jim C or Ed R ??????

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Jim Cannon    28

I wrote a lengthy reply. The system threw it away. I don't have time to rewrite it all right now. I will try to do so tonight or tomorrow.

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1965rivgs    54

Hydraulic hammering in the fuel line. Pull up an image of a `66 A/C fuel pump and it will be apparent how Buick changed the pump to deal with the problem. Hope this helps,

Tom

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Jim Cannon    28

Tom has the cause defined correctly.

The rattle occurs back where the steel pipes of an A/C-equipped car run along the frame and then a rubber fuel line connects to the smaller steel line. It is the return line from the fuel filter.

The fix is to take a piece of 5/16" fuel hose, about 4 inches long, split it lengthwise, and slip it over the steel line (and some of the rubber line) between the line and the frame. Push it toward the front of the car to jam it in there so it will stay. You have now inserted a sound insulator between the steel line that rattles against the frame.

From my observations, it will rattle the next time you drive the car after you droving it and got it hot enough for vapor to be inside the return line. The next time you drive, you are sending a solid stream of liquid out of the fuel filter vent port and back to the fuel tank. When the leading edge of the liquid gets back by the frame, it rattles because the diaphragm style fuel filter sends the fuel out in pulses.

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carlbraun    13

When I forst bought my 65 Riviera GS it had an electric fuel pump in conjunction with the stock mechanical pump. When i decided to get rid of the ugly wiring and elec fuel pump the car ran great on just the mechanical pump (an NOS AC original pump). After removing the elec pump the car developed a tick like a bad lifter or a light rod knock. I talked to my musclecar mechanic about it and he proceeded to tie down the whole steel line system with rubber u clips...that didnt help...ONLY reinstalling the elec fuel pump solved the ticking problem.

the car is now apart for restoration and Im interested in learning more about the 66 pump vs the 65 pump...maybe its a solution when i put it back together.

Comments?

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Riviera63    68
On 3/11/2013 at 3:35 PM, Mr Riviera said:

The infamous Riviera Rattle - 1st. Generation - This problem keeps coming up and while most agree that its the fuel lines causing the rattle , I would like to have some folks comment on where they found the problem and the fix . I have never had the problem but many have . Seems that its only A/C cars . This has been covered in the Review in the past but not detailed facts as to what the owners found and the fix . Hope you can help guide those that have the problem .

 

My car is in having the "Riviera Rattle" taken care of. They have dropped the tank as they could see the inlet/outlet of the sending unit is hitting the trunk floor.

 

The "Riviera Rattle" has been solved. They found 3 areas where the rattle was occurring. The tank was rubbing back near the fuel filler neck. (pictures 1 & 2) The sending unit inlet/outlet was making contact with the trunk floor (pictures 3 & 4) They used different clamps that would not protrude as far up as the old clamps and they put topper tape along the top of the fuel tank to create  some separation between the fuel tank and the underside of the car. They also ran a new ground wire from the sending unit for me. (pictures 5-7) To fix the frame rattle they just put rubber fuel line around the metal line as suggested earlier in the thread to keep it from rattling. I am glad this has been resolved. While not a problem that will keep you from driving the car it is one of those annoyances that drives you crazy. I hope this will be a help for others suffering from this problem.  

 

Bill

 

 

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rapom    20

I have a rattle that jingles when I hit a bump and it comes from the rear on the driver's side.

 

Is this the rattle you guys are talking about?

 

 I thought it might be the brake cable but everything looks tight.

 I pulled the rear brake drums and all the components looked tight.

 

 I was going to throughly check this out in this winter.

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Seafoam65    185

No, hitting a bump has nothing to do with the rattle they are talking about. The Riviera rattle is a pulsing metallic thump coming from underneath the back of the car

even when it is sitting still and not moving, but with the engine  running.

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KongaMan    170

Seems to me that the issue here is the tank and/or fuel line hitting the body.  On some cars, normal vibration is enough; on others, it may take a jolt to knock them together.  In the end, it might be the same issue, no?

 

What happens if you loosen the tank straps, slide something (e.g a piece off wood or thick rubber) between the top of the tank and the body, then tighten the straps?  And it's still not clear why dropping the tank a fraction of an inch (i.e. putting some washers on the bolt between the strap and the frame) wouldn't solve the problem in some cases.

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