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Rough idle

Started by shadetree39, Yesterday at 03:33:45 PM

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shadetree39

Yesterday at 03:33:45 PM
I have a rough idle issue on my '76 fuel injected Eldorado. The roughness is thru all rpm ranges. All engine vitals are good, compression,vacuum,plugs read good, etc. The Fuel injector manual suggests cleaning the injectors. I got two sets of seals one from eBay and the other from Rock Auto and they are quite different.
Previous owner had Heritage Cadillac in Lombard, Il install new injectors,seals in 2004. Car has been driven but 900 miles since. No leaks. Fuel pressure is 39 psi at key on and holds in the thirties at various vacuum draws from the regulator.
I don't want to remove the injectors and not be able to reassemble them leak free. Note pictures and their dimensions.
Note also the set that I got with the car #5720A740 marked FJ12 on package, look NOS. 
Which ones should be used? Is there a better source?
One set came with the filters. I got the old set of injectors and have been unable to remove the filter from them successfully .
Any suggestions.
The shop manual suggests cleaning the injector in a 1/4" of metal-prep for no longer than 30 min.   
Any help or suggestions would be most appreciated.
I would not rule out sending them out for cleaning if a reliable source is available.


Lou Aug #33894
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