Cold Start Issue 911 1974 Targa -

[AusPorscheGuy]

Hi guys

I am in the process of restoring a 1974 911 Targa. I have noticed that when cold starting I have to pretty much prime the fuel pump by taking off the air filter and lifting the sensor plate every time. I have cleaned the WUR which had a clogged mesh filter. I have also installed a new fuel filter. The fuel pump makes an ungodly noise at start up as well but the car refuses to start until I prime the pump via the sensor plate. Any suggestions as to whats the likely culprit ...new fuel pump ?..

Regards Daren

Note I have duplicated my post so sorry ... Main post is at link is the next response.

[ossiblue]

Originally Posted by AusPorscheGuy

Hi guys

I am in the process of restoring a 1974 911 Targa. I have noticed that when cold starting I have to pretty much prime the fuel pump by taking off the air filter and lifting the sensor plate every time. I have cleaned the WUR which had a clogged mesh filter. I have also installed a new fuel filter. The fuel pump makes an ungodly noise at start up as well but the car refuses to start until I prime the pump via the sensor plate. Any suggestions as to whats the likely culprit ...new fuel pump ?..

Regards Daren

You have two threads on the same subject, and I responded to the first one. Please as the moderators to move this post to your other thread, or link this post to the other thread so we can all follow along.

Here's the link to your first thread. Any other responses, please post through the first thread, linked below.

Trouble Starting 1974 Porsche 911

[Bob Harriman]

I put a marine primer bulb in front of the fuel pump. Squeeze and go