Date: Sun, 16 Apr 2006 01:51:36 +0000 (UTC)
From: Craig's Saab C900 Site <c900nospam.apana.org.au>
Subject: fuel pumps in earlier C900's - replace that yukky rubber pick up?
Hi everyone,
Since I pulled the fuel pump from the turbo car (83 non-APC 8V) and found
that it's rubber pick-up had gone gooey (!), I've used the pump and dodgy
pickup retrieved from my donor car. For those who haven't seen the pics:
http://www.classicsaab.net/gallery2/main.php?g2_itemId=940&g2_page=2
Anyway what I want to know is whether there is any point replacing the
decayed rubber pick-up with another one (new of course!), or if it's better
to try and get a fully-plastic hard pickup which seems to have become
standard later on.
I haven't been able to tell from parts books, etc. if there actually is a
plastic pickup that's got no decayable rubber parts and suits the older type
of pumps which don't have a pre-pump.
Failing that, is there any problem using a pump from an 85+ car which has a
pre-pump to replace the older style of pump? Did the fuel tank design itself
actually change when Saab went from pressurising the whole tank to just
having a small chamber pressurised by the pre-pump?
Besides the issue of adding another device to break, would it really bring
any benefit to change to a later style of pump assembly when replacing a
pump unit in a pre-85 classic 900?
The cost of a new rubber pickup looks reasonable when checking the
saabsite.com price list, but I'm not really keen to buy a new one if it's
not going to last very long with modern fuel mixes and all their interesting
additives...
Regards,
Craig.
PS. This is posted in the classicsaab.net forums at:
http://www.classicsaab.net/phpBB2/viewtopic.php?t=311
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