I have a leaking intake manifold gasket on my 88 buick century.It's leaking about a quart every 2 weeks?

Question

Otherwise the car runs fine .No oil in antifreeze or visa versa .Should I do the repair for $700.00? Is it risky ?

Leaking oil that is.

Answer 1

$700 for an intake manifold gasket? You can put a new engine in for that much labor. $250 max.

Answer 2

Which end is leaking. It's hard to believe an intake would loose this much oil. It's really straight forward and simple.
Drain the coolant remove everything on top of the intake and remove it. Carefully scrape clean all gasket-ed areas around intake ports and on the ends of the intake. Wipe all surfaces clean with mineral spirits.It's very important that the intake is still solid an all angles are correct. Any engine building shop or your Buick car dealer check this for you. If its made of plastic toss it and buy one through the Dorman Company or GM. Lay cheap white car polish towels in the lifter gallery and clean all intake ports and the gasket-ed ends of the block where it meats the intake. Find a Fel Pro intake gasket set. To do the job correctly, lightly smear Loctite blue silicone sealer around both sides of each gasket. Lay a neat bead of of the same material stick your intake manifold gaskets on each bank of ports. On the ends of the block add a bead to set the the end seals on. If you are tall carefully position the intake on the heads and block. I'd suggest buying new grade 5 or 8 hardened bolts to attach the intake manifold. Start from the inside out in a circle and tighten cross ways in 5 lb. increments to the tightening spec. Your car dealer, Motors, Chilton manuals found in any library will have tightening specs. Using a torque wrench

Answer 3

9<<< years old repair tech. It's hard to judge given that little information. Most of what you pay for is labor to remove upper and lower intake manifolds. Replace gaskets, clean it up and, put it all back together. Most cases your leaks are coming from something else such as poor maintenance. If you don't change your oil at 3,000 miles you will end up with leaks. Even if the oil looks good the additive package in the oil breaks down and fails. One of the jobs of that additive package is to protect gaskets and seals. Most situations when oil leaks from a lower intake manifold theres going to be a sludge issue. If there is sludge you will be fixing leaks from now until it ends up in the junk yard. Have anymore questions email me at [e-mail]

http://lessgov2007.blogspot.com/index.html

Answer 4

it does no longer injury to put in a clean gasket. those engines have an often occurring subject with the intake gasket. it many circumstances we could coolant leak into the oil. it may additionally enable oil into the intake manifold.

Answer 5

The problem with leaks is that they only get worse. So if you plan on keeping the car for awhile, then get it fixed.