Interest in a Working Scavenge pump GP?
Launching!
Joined: Dec 2001
Posts: 289
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From: Wallingford, CT
Re: Interest in a Working Scavenge pump GP? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by red ws6 99:
<strong>
I dont think anybody has gone through all the broken pumps to see what the failure mode is.
You're probably right about this.
I do failure analysis of valves and other components at work and on most things its a very simple problem.
A big part of my job is failure analysis of disposable medical devices.
If everyone could post what failures you are having, this would include leaks, not pumping, etc. Also if you guys could remove the two bolts and look inside at the check valve, cam, diaphragm(spelling), seal and see if anything looks damaged. This would greatly help fix the problem.
Gary</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I may take apart mine again, but even if I don't, I remember what it looked like. Do you mean the 4 screws that are readily visible from the outside, or the two screws that are buried in the top, and are used to change the orientation of the inlet and outlet? Nothing has ever looked wrong once the 4 screws were removed. If you really mean the two screws, I don't recall checking these recently, but I think that I may check the tightness on these tonight.
Mine seems to just start leaking from where the plastic top joins the rest of the assy, but this may just be an effect and not a cause.
<strong>
I dont think anybody has gone through all the broken pumps to see what the failure mode is.
You're probably right about this.
I do failure analysis of valves and other components at work and on most things its a very simple problem.
A big part of my job is failure analysis of disposable medical devices.
If everyone could post what failures you are having, this would include leaks, not pumping, etc. Also if you guys could remove the two bolts and look inside at the check valve, cam, diaphragm(spelling), seal and see if anything looks damaged. This would greatly help fix the problem.
Gary</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I may take apart mine again, but even if I don't, I remember what it looked like. Do you mean the 4 screws that are readily visible from the outside, or the two screws that are buried in the top, and are used to change the orientation of the inlet and outlet? Nothing has ever looked wrong once the 4 screws were removed. If you really mean the two screws, I don't recall checking these recently, but I think that I may check the tightness on these tonight.
Mine seems to just start leaking from where the plastic top joins the rest of the assy, but this may just be an effect and not a cause.
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Joined: Mar 2002
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Re: Interest in a Working Scavenge pump GP? Ok. Yes, I'm reasonably stupid. Having said that, I'm on the list for a single turbo Stage II kit from LSIMotorsport, and I don't understand this post.
Are you gentlemen speaking of a dry SUMP oiling system, or a vacuum PUMP?
You're giving mixed signals (to stupid people like me). Please explain.
SC
Are you gentlemen speaking of a dry SUMP oiling system, or a vacuum PUMP?
You're giving mixed signals (to stupid people like me). Please explain.
SC
Re: Interest in a Working Scavenge pump GP? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by SS00Blue:
<strong> I'm on the list for a single turbo Stage II kit from LSIMotorsport, and I don't understand this post.SC</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">the issue is with Incon TT only afaik. most kits have gravity oil return. the Incon turbo oil returns are too low to use a gravity return method, so you need a pump to route the oil back to the pan.
<strong> I'm on the list for a single turbo Stage II kit from LSIMotorsport, and I don't understand this post.SC</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">the issue is with Incon TT only afaik. most kits have gravity oil return. the Incon turbo oil returns are too low to use a gravity return method, so you need a pump to route the oil back to the pan.
TECH Fanatic
Joined: Nov 2001
Posts: 1,190
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From: Las Cruces, NM
Re: Interest in a Working Scavenge pump GP? I ment to say the four screws but changed it to two. If you remove the four screws you can see the check valve, etc. There are two screws if removed that you can get to the cam. Of course the first problem was with the check delaminating from the housing. I have heard several people say that it is leaking from the two halves of the pump. If thats the case then there is probably a rip in the diaphragm, since it is used to seal the two halves of the pump. A rip in the diaphragm could be caused by debris, by problem with the cam, or by excessive temperature. With a good color photo it should be easy to tell what the failure was.
Gary
Gary
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Joined: Nov 2001
Posts: 1,190
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From: Las Cruces, NM
Re: Interest in a Working Scavenge pump GP? You could get rid of the noise of the pump by spraying on something like the liquid dynomat stuff. That would get rid of almost all the noise.
Gary
Gary
