Summit has some for under 200

http://www.summitracing.com/parts/du...make/chevrolet

when they brake on me i always use a J nut on the bottom and leave it alone..holds the cap on just fine,,,

Now that is damn brilliant! I think that is worth a shot for sure.

had a few Suburbans and Astro vans at work that broke a ear while changing the cap and I always used a J nut and never had a issue..

I went to Home Depot and couldn't find any J nuts deep enough to grab the bottom lip. Where did you get yours? In the mean time I strapped it down with three cable ties and it seems to be working well until I find a better solution. Not moving at all.

The problem now is that the engine will rev smoothly until about 3800 RPM, it will not rev past there and then throw an alarm on the way back to idle. Not going any further. I've heard an IAC on the way out will do that. Thoughts? I checked the pintle on the IAC and it moves freely.

Here's a video:

http://www.youtube.com/watch?v=ssobQB48e1U

If you're not in the water, in gear & under load then that reving the engine to only 3800 is perfectly normal. You're hitting mercruisers guardian mode designed for protecting the engine from you doing just that. Please, do yourself a favor, stop revving the engine in neutral.:eek:

You really shouldn't rev over 1800 rpm max. FYI, while on the engine flushing device (ear muffs) the recommended engine RPM is 1300 rpm.;)

Capt.
Same thing happened to me several years back. I used the zip tie method also.
Mine worked fine for years. If no misfire, I don't believe cap to be an issue
w/low rpm s. P.T.L. Rory

speaker J nuts work pretty good

It was in the water :)

if it was in neuyral,and in the water, it will still go into guardian( over rev )code,,,looks like you where still tied to the dock on your video,,, the shift sensor lets the computer knows it,s in gear and then will not allow the over rev code