Where is the fuel pump on a 69 Riviera 430? NAPA tells me it is inline but I can't find it I think it's in the tank. Am I a moron?
It is the same for all Small and big block Buicks. It is on the front left (drivers side of the engine right under the power steering pump on the block. See picture. Very easy to get to and change. Two bolts and two clamps and it's off. Tim
Re: 1969 Riviera 430 Fuelpump It is in the gas tank. Link below tells some other characteristics of the 69 rivi http://www.rivowners.org/features/evolution/evpt69.html
If you open your trunk, theres an access plate in the right corner. You dont need to drop the tank. It comes out in 10 minutes from the top. Unplug the harness connector underneath the car. DO NOT try and remove the electrical connector at the sender!! It unplugs from under the car. Follow the wires to the connector. The 68 still had a mechanical. Only problem was the pump is on the drivers side and the fuel lines are on the right side. There's about 10 feet of rubber fuel line hose running inside the frame and cradle.
Jason What was the purpose of the 68-69 change? Even a 70 stage 1 455 with a much higher output engine used the mechanical pump.
I really dont know why they did the change from mechanical to electric. The electric doesnt put out too much pressure. IIRC its output is only 5 lbs. The only thing I can figure is that they might of wanted to cut down the amount of rubber line? Maybe to preclude the possibility of the rubber rupturing? If thet was the case, they went from bad to worse. The 69's steel line ends before the front wheel and is rubber going up the inner fender and over the hot exhaust manifold to a small steel line by the choke stove. If that rubber hose ever breaks, my car is going to burn to the ground!
Thank you everybody for the input ... I ended up dropping the tank, no key to the trunk and no vacuum ... but it needs to be cleaned out anyway ... now I just need to convince my local NAPA that the pump is in the tank and not inline. One year from now ... if you see a sharp red Riviera on Maui with deep rumbling glasspacks and a surfboard ... yeap, it's me.
My thoughts on this have been that GM was doing some real world in service testing of the idea. I have always been curious as to why they dropped the electric pump after 1970 though. :idea2:
I would rate a mecahnical pump as very reliable and with a carb you cannot raise the presssure much higher anyway so it is not needed for preesure either.
