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Posts posted by Zyvek
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Yesterday, Zyvek asked why it wouldn't be a good idea to modify a stock VFR fuel pressure regulator yourself: http://www.vfrdiscussion.com/forum/index.p...ic=16229&hl=diy
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Highly Scientific Modification
Need sleeeeeeeep now :huh:
Totally Awesome. I think I might be feeling like the mad scientist that everyone doubted! On the other hand if anything goes wrong, I will gladly purchase you a new FPR!
Vtec electrical problems info post
in Sixth Generation VFR's
Posted
Here's is some information I Googled that may be relevent to the bad ground issues from:
Dielectric vs. Conductive Grease to Protect Connectors and Grounds.
[Query:] You have repeatedly recommended the application of dielectric grease to underhood wire connections. Isn't the insulating property of such grease counter to the goal of IMPROVING the integrity of electrical connections? I would think that a conductive paste (such as Eastwood's Kopr-Shield) would be better. The only potential downside I can think of is that sloppy application could cause short circuits, but care and common sense should preclude this.
[Response:] This is a good question and one that I have received several times. Yes, it is true that the dielectric grease is non-conductive. However, in the context of connections that carry voltages larger than 1 volt, the grease will not result in a bad connection. The male and female connectors will wipe enough of the grease off at the mating surface so that the electricity will flow just fine. The important part is that there is no chance of the grease creating a conductive path between adjacent terminals in a multi-terminal connector. The main purpose of the grease is to seal the terminals against oxidation which creates a high resistance barrier and moisture and dirt which can result in shorts and ground paths.
For the GROUND connections - especially those in the engine compartment where the ground leads are fastened to aluminum surfaces like the intake manifold, I recommend using one of the conductive greases like OxGuard. These are found at electrical supply houses and are typically used by electricians to treat the end of aluminum electrical cables to prevent the very high resistance aluminum oxide from forming at connections - this was a common cause of house fires. The same high resistance oxide plays havoc with engine management system signal voltages. You can eliminate the problem by cleaning the aluminum surfaces and treating with the conductive grease. Also note that many of the spade type crimp on terminals that are available are made of aluminum. It is very difficult to find copper ones.