Do you need timing cover?
The upper cover isn’t completely necessary, since the chance of a rock or other debris getting up that high is slim. However, a lower cover is a must. Should a rock or something get lodged between the pulley and the timing belt, the results wouldn’t be good.
Do you have to remove a timing cover?
Besides protecting the timing mechanism inside, the timing cover also has coolant and oil passages. If any of those areas leak, the timing cover will have to be removed.
What kind of cover does a timing chain use?
In applications that use a timing chain, the timing cover usually seals the front end of the block, while engines with timing belts typically have timing covers that are less integral. Timing covers can be made from either metal or plastic.
How do you get the timing chain cover off a maxima?
Using the notch on the top of the timing chain case, insert a suitable tool and carefully separate the front timing chain cover from the rear cover. Using a small prybar, pry the oil seal from the timing chain cover; be careful not to scratch the timing chain cover sealing surface.
When do I need to replace my timing seal?
Over time the seal (which is made of rubber or cork) will deteriorate and replacement will become necessary. The seal will also need to be replaced any time the timing cover is removed for maintenance of the timing chain.
Besides protecting the timing mechanism inside, the timing cover also has coolant and oil passages. If any of those areas leak, the timing cover will have to be removed.
Do you drain coolant before draining timing cover?
If your car uses a timing belt, there may be no need to drain the coolant. But most cars run coolant through the timing cover, so it will have to be drained before the cover is removed.
Do I have to drop the oil pan to remove the timing chain?
Depending on the engine and what it’s in, I remove the oil pan for an original equipment timing chain replacement. Back in the day, the factory (and not just GM) used nylon on the chain gears and this will come apart over the years. By removing the oil pan, I can clean all the pieces and other just that builds up.
How to change timing chain seal on SBC?
OBTW, change the timing chain cover seal AND put a repair sleeve on the crank = eliminate a cohttp://nastyz28.com/threads/timing-cover-seal-sbc.241645/#post-2713933mmon leak on a SBC. Click to expand… I think that was before the one piece oil pan gasket days.