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97 saturn twin cam leaking oil under valve cover

Oil is coming from block below the valve cover, but not from the valve cover. behind the bracket for the A/C compressor. seems to be a machined hole on the underside.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 315 Answers

SOURCE: 94 Saturn Twin Cam Valve Adjustment

Valve slash and clearance adjustments should only be performed by certified mechanics and is not a job for the garage or novice hands on type.
If you still decide to proceed, I suggest you get your hands on a maintenance manual which will list the procedure step by step, including proper torque values.

Posted on Mar 05, 2009

trububbles1
  • 54 Answers

SOURCE: 95 saturn sl2 smokes is it the valve seals ?

your pistons are leting blow by get through whick means that your pisten rings are wearing out more then likly

Posted on Oct 07, 2009

  • 74 Answers

SOURCE: 2002 saturn L300 with Oil in the coolant.

First, no coolant flows through the intake on the 3.0L in the L300 and Catera. The intake is a 5 piece setup, the base of which is a phenolic spacer to isolate heat from the intake manifold.

Beneath the phenolic spacer there is an oil cooler installed between the cylinders inside the block. There is a cover with 2 oil cooler lines that run up from the right side of the engine to the cover and into the cooler via an inlet and outlet banjo bolt. If the cooler wears out there will be an exchange of coolant and oil, more oil into the coolant than coolant into the oil, although there will be some.

You might notice a small drop in performance, and later will notice that the coolant reservoir is full of oil and is spilling over.

I'd start by checking cylinder compression to make sure you don't ALSO have a blown head gasket, but the cooler is quite notorious for blowing out. If you do decide to replace it you will need:
1: a new oil cooler
2: new gaskets for the steel cooler lines, they will be metal crush gaskets. 4 as they are for the banjo bolts (2 washers for each bolt, one bolt on each line)
3: 4 new gaskets for the coolant bridge (the almost crescent shape aluminum bridge next to the oil cooler cover, aluminum with hoses attached as well as the coolant temp sensor)
4: New gaskets for the banjo bolts on the coolant bridge, they're rubber but don't just use some junk! Get the real deal ones from the dealer and save yourself the trouble of redoing it later on. They're cheap.
5: Oil, Antifreeze and a new oil filter. I'd spring for the Coolant system cleaner if it's not a big deal, less oil in the cooling system makes for a better performing engine and better heat in the winter.

Tools: 3/8" ratchet, standard set of extensions for the ratchet, set of Torx sockets and inverted Torx sockets, set of 3/8" sockets, flat head screwdriver, dikes or side cutters.

1: take off the intake manifold clamps by prying where they latch together, don't damage them unless you plan on replacing them (your call, but a tech would reuse them)

2: take off all the Torx bolts for the manifolds, there's 4 pieces to the aluminum manifolds and the ECM and Vacuum reservoir have to come off the rear manifold to get to some of the bolts. NOTE the location of all vacuum lines and coolant lines so you don't forget them later. Also note the position of the ECM on the manifold so you don't have to figure out which way it goes on later, it only plugs in one way but it's a pain if you fumble it up.

3: Take out the phenolic spacer (black thing under all the manifolds, feels like plastic). There are rubber gaskets on these, if they're damaged then it's a good time to replace them, if not they are usually reusable. Napa, Advance Auto, Auto Zone, etc. always have them. Just ask for intake manifold gaskets, even though they're really phenolic spacer gaskets.

4: Remove the banjo bolts for the oil cooler lines, note the placement of gaskets on each side of the line that the banjo bolt goes through. You'll want to remember that later to avoid a leak. Also remove the coolant bridge banjo bolts and move it out of the way, again noting the gaskets for later replacement.

5: loosen the 2 nuts where the oil cooler lines were, these are attached to the oil cooler and secure it to the cover.

6: Remove the Torx bolts for the cooler cover, lift the cover, and remove the cooler. Make sure you clean that galley out real well, saves you some headache when cleaning later on.

7: When reinstalling the oil cooler cover remember to use a 2mm bead of sealant around there. I've seen guys use Permatex Orange, but if you can swing it then get something better from the dealership. You don't want to do this again in a year if the Permatex leaks on you.

8: Reinstall coolant bridge, oil cooler lines, phenolic spacer, manifold(s) and clamps. Double check all your work! Change your oil, and flush out the cooling system.

Estimated time? For a tech.. probably 2 hours. For a Shadetree mechanic? Probably 4 to 5 hours.

Good luck!

Posted on Oct 08, 2009

  • 543 Answers

SOURCE: 97 SL2 dohc loud knocking sound coming from

you have a ROD knock,,,,the oil level can be good and compression can be good,but the bearing on the rod to crank is shot and now has too much play and is causing excessive play and noise,soon the rod will come out the block and seize the engine,,if its knocking that loud then its too late to fix it,,your gonna have to replace the engine really soon,,,sorry but its normal of the dohc engine to do this usually between 90 to 130k miles they let loose but the single cam dont have this issue

Posted on Oct 26, 2009

  • 121 Answers

SOURCE: water seems to be leaking from engine block on my

need to take or tow to a repair shop,the freeze plug or clean out plug is leaking ,was there proper coolant protection? did the engine overheat ?the block could be cracked

Posted on Oct 28, 2009

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