Jason, I fully agree with Brian in that you need to setup your Spica pump from the beginning. Wes Ingram's booklet (http://015cb80.netsolhost.com/hp.htm) takes you thru all the steps to get it right. The best $30 you'll spend on one item.
Bruce > Date: Sun, 1 Apr 2012 18:12:33 -0700 > From: Brian Shorey <[email protected]> > Subject: Re: [alfa] Spica Cold Start Question > > I have found that tweaking the 'back end' settings of the Spica system > might > help in one area, but generally don't help overall. And in time, it tends > to > make things worse. > > The Spica system has a setting procedure that starts with the base settings > and builds on them. If the base settings are not right, the settings > later in > the loop tend to get worse and worse. > > I'd recommend going through the entire procedure. The whole thing takes > maybe > an hour, and you'll have the pump running as well as it can. > > bs > > Sent from my iPad 3 > > On Mar 29, 2012, at 10:59 PM, Jason Glover <[email protected]> > wrote: > > > Hello all, > > > > I recently swapped the SPICA pump in my '76 Spider for a used unit from > APE. > > Previous pump had a stuck rack. The car seemed to run really well > considering > > I didn't do much setup beyond getting the TA set screw set to .19 at 180 > > degrees and set the long rod. It was really great to go from dead to > running > > for $200, a few hours on my back, swearing and fearing my 1/4" ratchet > u-joint > > was going to break. > > > > The one thing I noticed was the car seems harder to start that with the > > previous pump, and almost won't start at all if you give it much more > than > > zero throttle. The cold start solenoid works and I hear it clicking away > when > > I turn the key. I took a measurement from my previous pump solenoid and > > discovered the solenoid was screwed in about 3.5 more turns on the > current > > pump. I decided to set the current solenoid the same as the old one, or > about > > .275 from bottom of solenoid housing to pump housing. The car started > better > > and with a bit more throttle pretty much as I'd hoped. > > > > Here's the glitch. Now when I come to a stop, the car will idle normally > for > > about 5 seconds, then nearly die a few times, then eventually settle back > into > > a normal idle. If I coast to a stop not using the brakes, or just take > the > car > > out of gear and coast, this does not happen. > > > > I haven't tried returning the solenoid to its previous setting to see if > > anything changes. I thought I'd see if anyone has any ideas first. Any > > feedback would be great. > > > > Jason > > Bellingham, WA > > '76 Spider -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
