Heat riser
Race Director
Joined: Jul 2004
Posts: 12,696
Likes: 329
From: Scottsdale Arizona
I think that it's very possible. If you're running stock exhaust, you'll have to replace the valve with a spacer. The other alternative is to clamp off the vacuum hose or simply remover the butterfly from inside the valve. Many of these are locked up in any case, so you may not have to remove it if it's alread stuck open.
Drifting
Joined: Mar 2003
Posts: 1,608
Likes: 3
From: Canberra AUSTRALIA
St. Jude Donor '05-'06
Unbolt it, replace it with a spacer. Paragon sells them. Alternative is to cut the guts out of the riser and turn it into a spacer.
To remove it undo the 3 nuts on the passenger side studs that go into your manifold. You may need to loosen your exhaust to get it to drop down enough so you can remove the riser.
To remove it undo the 3 nuts on the passenger side studs that go into your manifold. You may need to loosen your exhaust to get it to drop down enough so you can remove the riser.
Le Mans Master
Joined: Mar 2004
Posts: 7,470
Likes: 1,492
From: Little Rock AR
The heat riser spacer is available from most repro houses. The spacer is the same size as the valve but has no guts in it. The spacer was actualy original factory piece used on FI cars. If you have a leak caused by a bad heat riser valve, I would think the spacer would cure it.
-Mark.
-Mark.
