Well, last night I took my TII out for a spin. Getting on the highway, top of 4th gear(5500-6000rpms) my car hesitated a little bit(like 3800rpm hesitation). Got off the highway, the car still has all the power I'm used to, but it won't idle right...and when it stalled, I couldn't get it started back up.

Today, I took the lower spark plugs out and did the "listen" test. 3 even pulses, or so it sounds, on each rotor.

I thought my engine was blown, but could I have a problem with a vaccume hose? Or maybe the computer has a problem?(again, this is somewhat like what happened to me last spring).

I am waiting to get back my compression tester(just a regular one, with a release valve) and my computer checker. I took a look under the hood and all of the vaccume lines I could see in the BAC area seem to be connected...

So, anyone else have this problem?

Michael

 

A vac leak doesnt mean a hose was disconnected. It could be a tiny little split in the hose. Really, it isnt expensive.. if they are hard from the heat replace them.

Remove the release valve on the compression tester

 

Well, I have replaced quite a few lines and I have a bunch extra hose lying around...so I'll check some of that.

Also, I just did the TID mod on my car...so thats another area I'll check.

The compression tester is one with the release valve on the side...so I just hold it in to see the individual pulses and then let it go to see max compression.

Michael

 

Anyone else have any ideas?

Michael

 

Go here and read the problem about the ground connection and how it causes similar problems at 3800rpms.

 

go with the propane technique, hold a propane toarch around the vacume lines and if idle increases or there is a flexuation in the Rpms you have a leak.

 

Well, did a compression test today, low compression on 2 sides of the rear rotor, which means bad apex seal. Thanks for the help guys.

I found an engine for sale about 10 minutes from my house I'll probably go pick up and then rebuild this one so I have an extra.

Michael