Question about 1993 Toyota Previa

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I want a free online repair manual can i get one and where

Rocker cover gasket

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Posted on May 09, 2009

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Oil pressure sensor replaced 9/14/2015started to leak oil again. Valve cover gasket replaced 1/6/2016 9/14/2015 now leaking oil again


When you replace the rocker cover gaskets, clean the surfaces where the gasket contacts the heads and the rocker cover with alcohol and a rag. Make sure there is absolutely no oil residue on either surface. Use a silicon sealer and spread it on the side of the gasket that will touch the head. Position it and use the head bolts temporarily as guide pins to hold the gasket in place until the sealant dries COMPLETELY. Remove the bolts. Now put more sealant on the surface of the rocker cover and install the cover on the gasket gently so as not to disturb the gasket. Install the cover bolts and tighten firmly but not so as to squeeze or deform the gasket. If dine correctly, the gasket will not leak.

Jan 13, 2016 | 2007 Saab 9-3 Aero Convertible

1 Answer

Leaks oil from rocker cover. repaired 3 times. is this a common fault? what is the solution?


The rocker cover will leak oil..............

1. If the rocker cover has been damaged due to poor mechanical fitment and is no longer perfectly straight; or
2. The rocker cover bolts are not torqued evenly at the correct ft/lbs specification; or
3. If the rocker cover bolts have been excessively torqued in which event the cover will distort and the gasket will be excessively compressed; or
4. The gasket is in poor condition and needs to be renewed; or

5. The gasket fitting is sloppy done in which event you can assume the cover will not have been properly fitted either.

I would be buying a new rocker cover (or a straight used one) before doing the next repair because your original is probably deformed now and will likely never seal properly.

Nov 28, 2015 | Cars & Trucks

1 Answer

Free vehicle repair manuals


yes there is a seal on the cam shaft behind the water pump pully
undo that bolt
you have to undo the cam shaft to get to it .dont drop the lifters
19 nm for the can bearing bolts ..do not overtighten the two rocker cover bolts you can crack the rocker cover or split the cam bearing those bolts tight into
many say not to use silicon but because of the age of the car you need to use the blue silicone on the half moon the rocker gasket and the cam seal ..there are no online repair manuals for the tm-tp magnas ..the rocker covers can warp but rare

Apr 19, 2014 | 1986 Mitsubishi Magna

2 Answers

Oil leak from rocker cover


It is most probably the rocker cover gasket. This is enough to install, you just need to source the correct part from your local parts store or dealer. Remove bolts and rocker cover and replace seal. Ensure on replacement, that you use a sealant that is compatible with oxygen sensors, I use PERMATEX ULTRA-BLU RTV Silicone. That seams to work a treat.

Jan 25, 2011 | 2001 Hyundai XG300

3 Answers

1992 toyota corolla oil leak around spark plug tubes. how is it repaired


You need a new valve cover gasket set. This will come with seals that fit around the spark plug tubes.

Jan 18, 2011 | 1992 Toyota Corolla

2 Answers

Oil in spark plug housing


replace valve cover gaske

Nov 24, 2009 | 1993 Honda Accord

1 Answer

How to change out valve cover gaskets on a 1989 Lincoln Town Car


This is All you need for this Repair, ALSO Be Sure ALL GASKET SURFACES ARE VERY CLEAN. This Engine Requires MORE than MOST ALL Engines do for this Repair.

REMOVAL

  1. To remove a valve rocker arm cover from the RH cylinder head, disconnect PCV closure tube from oil fill stand pipe at rocker cover.
  2. Remove the Thermactor bypass valve and air supply hoses as necessary to provide clearance.
  3. Disconnect the spark plug wires from the spark plugs using Spark Plug Wire Remover T74P-6666-A or equivalent. Do not pull on wire. Remove the wires and bracket assembly from the rocker arm cover attaching stud and position the wires out of the way. ALSO MARK THEM AS TO WHERE THEY CAME FROM !!!
  4. Remove upper intake manifold.
  5. Remove attaching bolts and remove the cover.
INSTALLATION

  1. Clean the valve rocker arm cover(s) and the cylinder head gasket surface(s). Position a new service valve rocker cover gasket.
  2. Position the cover(s) on the cylinder head(s). The cover is tightened in two steps. Tighten the bolts to 14-18 N.m (10-13 lb-ft). Two minutes later, tighten the bolts to the same specification.
  3. Install the crankcase ventilation tube in the RH cover.
  4. Install upper intake manifold.
  5. Install the spark plug wires and bracket assembly on the rocker arm cover attaching stud. Connect the spark plug wires. Install the air intake duct assembly.
  6. Install the Thermactor bypass valve and air supply hoses (if required).

Oct 03, 2009 | 1989 Lincoln Town Car

1 Answer

Rocket cover gasket


yes just undo all the rocker cover bolts remove the rocker and make sure that you remove all the old gasket material on the rocker cover and the cylinder head then get some gasket tack(a spray adheasive) put gasket in place and make sure you only tighten them hand tight with a nut driver.start with the inside nuts and work your way to the outside

May 20, 2008 | 1993 Volkswagen Cabriolet

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