Having initially believed my 3 amigos were not sealing and causing a 'high' speed tick and spending hundreds on new parts, the tick remains and is now causing me stress. l viewtopic.php?f=11&t=49555 (http://www.mr2roc.org/phpBB3/viewtopic.php?f=11&t=49555) l
A stainless manifold, genuine gaskets, studs, bolts and I'm starting to think it's something much more serious. It has the sound of a knackered manifold gasket - a 'hollow tick'.
Could this be worn lifters/tappets?
Please, please help. A match and extra fuel will be next. This is beyond rediculous.
Regards,
Jim
I don't have anything helpful to add, just that I really feel for you pal. I've been there myself and the stress an unknown issue causes you is terrible. Really wish you the best of luck getting a result on this.
Exhaust has been thoroughly examined (off the car) for pinholes/cracked welds. All good. Tried spark plugs. Still ticking. Checked resistance of injectors - all identical/in limits. Looking at aux belt tensioner and aux belt with idlers as a last resort.
Bizarre.
Regards,
Jim
Are you able to post a video with sound?
Will certainly try! It's almost best-heard from inside the car, window down so will do that. Pretty sure I have a photo bucket account....
Depending on how loud the ticking is you may be able to eliminate the cat/manifold by simply removing them and starting her up. Will be noisy but might proove out what is making the noise. Other than that I think you have the right idea by changing parts one at a time
I hadn't considered that Andy, if I can't reproduce the fault with the cat pipe off the car, that would lead me to the cat material breaking down in the main cat? I did give it a good shake and couldn't hear any rattling? I'll try literally anything to be fair! It's free at least!
The more suggestions the merrier!
Regards, Jim