acklac7 Posted May 29, 2005 Report Share Posted May 29, 2005 Ok I checked out the fuel injectors...they seem to be fine, at least the spray pattern looked ok....So I went to put the throttle body back on and noticed the gasket would not fit. After looking at it for a few minutes I came to the conclusion that it is likely the WRONG gasket. It doesn't appear to be warped or streched just appears to be the wrong size. As you can see in the pictures it just won't fit. Upon further inspection I noticed that there is a 1.5 inch section that is really chewed up, so I positioned the gasket so that this end would section would stick out (pic 2)....the serrations stop exactly where the gasket goes into the groove. I would assume that the gasket not being seated correctly is going to cause a vacuum problem right? (or some type of intake problem)....Probably going to go the dealership on Tuesday, hope they have the correct one in stock...Until then she'll just have to sit. A.J. Link to comment Share on other sites More sharing options...
acklac7 Posted May 29, 2005 Author Report Share Posted May 29, 2005 The arrows point to the serrations...., which end when the gasket is seated into the groove. A.J. Link to comment Share on other sites More sharing options...
adallak Posted May 29, 2005 Report Share Posted May 29, 2005 Ok I checked out the fuel injectors...they seem to be fine, at least the spray pattern looked ok....So I went to put the throttle body back on and noticed the gasket would not fit. After looking at it for a few minutes I came to the conclusion that it is likely the WRONG gasket. It doesn't appear to be warped or streched just appears to be the wrong size. As you can see in the pictures it just won't fit. Upon further inspection I noticed that there is a 1.5 inch section that is really chewed up, so I positioned the gasket so that this end would section would stick out (pic 2)....the serrations stop exactly where the gasket goes into the groove. I would assume that the gasket not being seated correctly is going to cause a vacuum problem right? (or some type of intake problem)....Probably going to go the dealership on Tuesday, hope they have the correct one in stock...Until then she'll just have to sit. I would cut off the extra portion and put it in. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
Scotty Posted May 29, 2005 Report Share Posted May 29, 2005 My memory tells me that someone ran into this problem before. Rubber swells from contact with oil and grease and its possible that is what happened here. I did a search and couldn't find anything Link to comment Share on other sites More sharing options...
KHE Posted May 29, 2005 Report Share Posted May 29, 2005 GEt the right throttle body gasket. If you cut the excess off that one and install it you will have an air leak and the engine won't idle properly. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Ranger Posted May 30, 2005 Report Share Posted May 30, 2005 I would get a new one too, but in the mean time I would bet if you are careful and cut it just right you could fit it together with RTV, let it set overnight and it just might last forever. Link to comment Share on other sites More sharing options...
acklac7 Posted May 30, 2005 Author Report Share Posted May 30, 2005 Yeah I'm probably going to just buy a new one. There aren't any signs that it expanded, just looks like the wrong size. In the Svc. Manual it notes to pay close attention to the part # on the throttle body when ordering parts...seems like there may be several different makes/variations of the throttle body? This might sound stupid, but should I expect any difference in performance with the correct gasket? Or was this gasket likely doing a fair job? A.J. Link to comment Share on other sites More sharing options...
Logan Posted May 30, 2005 Report Share Posted May 30, 2005 The O ring is correct... You cannot reuse a O ring... As mentioned....they swell over time...and are imposible to reuse. Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
Ranger Posted May 30, 2005 Report Share Posted May 30, 2005 This might sound stupid, but should I expect any difference in performance with the correct gasket? Or was this gasket likely doing a fair job? No, you should not expect any difference in performance. That "O" ring was likely performing as required while clamped in place. It expaneded after it was released. Link to comment Share on other sites More sharing options...
JohnnyG Posted June 3, 2005 Report Share Posted June 3, 2005 I see this in my job all the time. Usually the o rings swell from exposure to gasoline containing MTBE and will not be able to be forced back into the groove once they are removed from "service position". You have a few choices, but the best one is to get a new O ring. The other (next best) one is to cut a section of the o ring out using a new razor blade. This would be a 45 degree angled cut on the "cross section" of the material, so that the assemby forces act to hold the splice together. Using SUPER GLUE to fasten the ends together. The static seal application is very forgiving to this method, and will last a very long time. Never underestimate the amount of a persons greed. Link to comment Share on other sites More sharing options...
acklac7 Posted June 3, 2005 Author Report Share Posted June 3, 2005 Thanks....I ended up just replacing the O-ring...Thought about cutting it but decided to err on the safe side and just replace it....thanks for the help guys A.J. Link to comment Share on other sites More sharing options...
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