By Redsrover (Redsrover) on Thursday, September 20, 2001 - 01:16 pm: Edit

Located the source of frustration! The passenger side manifold-to-exhaust down pipe connection has a leak. I can easily access one nut from atop the engine, the other nut, closest to the manifold itself, is another story. Is there a gasket of any type between the manifold and y-pipe? What is the risk of my tightening these two nuts in order to stop the exhaust leak?

Red

By Craig on Thursday, September 20, 2001 - 03:00 pm: Edit

Red-
Yes, you can tighten the nuts. However, there are three per flange, and the nuts are on the bottom of the flange. there is a gasket, three studs and three nuts. Careful tightening, the studs are prone to breaking.
Craig
LRDE

By Kyle on Thursday, September 20, 2001 - 04:19 pm: Edit

And those freakin Y pipes crack all the damn time !!! Did they do anything about that in later years Craig? That is the only part of my disco that I truley hate with a passion...

Kyle

By Craig on Thursday, September 20, 2001 - 04:34 pm: Edit

yes and no. 4.0/4.6 rr's have a nice setup with factory headers, but we have not sucessfully installed them on a vehicle that came with cast manifolds. clearance issues on the passenger side. D2's still use the same setup as earlier rigs. we weld them up all the time. (although no d2's yet). mine have been done twice in as many years. Which leads to the question-- which one of you guys are going to be the first to build some equal length shorty headers for these things? All of these exhaust mods don't mean squat unless the manifolds will flow as much as the rest of the exhaust. pretty please?
Craig

By Ron on Friday, September 21, 2001 - 03:28 am: Edit

which one of you guys are going to be the first to build some equal length shorty headers for these things?

Some of the D90 guys run headers. hedmann maybe I forget. Disco compatible? I dunno

Ron

By Redsrover (Redsrover) on Friday, September 21, 2001 - 03:54 am: Edit

Can I have a muffler shop weld the joint between the manifold and the down pipe?

Red

By Craig on Friday, September 21, 2001 - 08:25 am: Edit

Red- I would not have them welded together, but you can certainly weld up the cracked portion. thats basically the only fix short of replacement.
Craig

By Mike Beiergrohslein (400mcs) on Friday, September 21, 2001 - 12:05 pm: Edit

Just found a nice crack in my passenger side manifold, has anybody else had this problem???
The LR mech has only seen 2 crack in his lifetime, guess I'm just the lucky number 2.