Hi Bob,
>
> I've noticed a popping or clicking sound coming
> from near the left front of the engine, near
> where the exhaust connects to the head, but I've
> not been able to determine if it is indeed an
> exhaust leak.  Could an exhaust leak be causing
> my problems?  I may pull the exhaust on that
> side and reseal it.  Man, that is a bear of a job
> and I do not look forward to it.  I think
> I'll double-nut those studs to get them out.
>
> Warren

Warren
the lifters can sound like this.  You can put your hand over the tial pipe
and look for leaks or have somebody do that while you look around. As I
recall you are down on power when the engine warms up that to me is to rich
or to lean.  When the engine warms up the injection system trys to go into
closed loop this is when the throttle switch come into play the throttle
switch tells the injection the engine if  the engine is at idle or not. The
oxy sensor trys to fine tune the mixture but will make the engine full rich
if its fouled.
I use studs for the exhuast on the # 3 and #2 exhuast ports and bolts at the
#1 and #4 the bolts need to be 30 mm long or they can strip the head threads
right out
Bob

>