#11 |
if it is leaking, ill bet you a plug nickel the manifold is warped. you have to pull it, and have it checked to be sure, but my guess is that cylinder #2 will be about .030-.030 out, and cylinder #1 will be out .080 or more. mileage isn't the cause, likely, though 50k is plenty, ill bet its either been warped from day 1, or got warped during assembly. there is an order and torque spec, and it may have been ignored at some point.
even if you successfully remove the old bolt, id warm the car up, letting it idle until the fan kicks on, and then only tighten the new one until the leak quits. if you do that, and find it takes an unusual amount of torque to shut it up, youll know its bent. it it takes, say under 40lbs to quiet it, then you might be ok.
if you do decide to remove it and have it surfaced, consider a gnari unit: https://www.gnariperformance.com/product...o-manifold
im not affiliated with these people, but i have used their stuff. way nicer than stock, sturdier, and less likely to warp. (you can get a plug for the external waste gate hole for cheap).
-J0N
even if you successfully remove the old bolt, id warm the car up, letting it idle until the fan kicks on, and then only tighten the new one until the leak quits. if you do that, and find it takes an unusual amount of torque to shut it up, youll know its bent. it it takes, say under 40lbs to quiet it, then you might be ok.
if you do decide to remove it and have it surfaced, consider a gnari unit: https://www.gnariperformance.com/product...o-manifold
im not affiliated with these people, but i have used their stuff. way nicer than stock, sturdier, and less likely to warp. (you can get a plug for the external waste gate hole for cheap).
-J0N
APRIL 2018 - LOOKING FOR A NEW CAR. PM me if you have an 87-88 roller or cheap TF for sale.
1988 TC 5MT-Blue/Blue check-off car. resto-project.
2006 Honda Odyssey 5AT, baby-mobile.
2013 F-150, 5.0, 6AT, 4x4, snow white paint.
1988 TC 5MT-Blue/Blue check-off car. resto-project.
2006 Honda Odyssey 5AT, baby-mobile.
2013 F-150, 5.0, 6AT, 4x4, snow white paint.