Topic: Timing Chain

[.]

Hi

I have a 85 P/U with a 22re

When I start I hear minimal chain slap,but I get this sound like a pinging or the chain slapping when I drive more like when I shift or take off. Is it possible that this is the chain slapping? How much does this usually cost to repair?

[79coyotefrg]

if you do it now, you can get by with  dropping the oil pan, then pulling the timing cover,  if you wait, it can wear a hole in the timing cover, causing coolant to get in the oil,  and  possibly  jump timing, causing bent or broke valves

[79coyotefrg]

pull the radiator first,  then  valve cover, oil pan,  then valve cover,  but you have to remove the ditributor  so you can get the 12mm head bolt thats in the pool of oil under the dist drive gear

[jimbo74]

depends if you do the work yourself, some is normal, some may also be an issue of your belts?


if you are looking to replace it, get the steel guide kit from http://www.engnbldr.com/Toyota-Hotlicks.htm

also check the timing cover to make sure the chain hasnt eaten a hole through the water jacket in it, causing water in the oil....

here is a writeup on a 22re http://www.4crawler.com/4x4/CheapTricks/EngineMods/TimingChain.shtml

[emsvitil]

LC Engineering has a double-roller upgrade kit too.   (it's pricey)

I put the LC Engineerning kit in after my single-roller chain jumped 2-teeth..........


The stock plastic guides are the worst thing Toyota ever did with the 22r engine so at least get the steel backed guides.   

The single chain also eats away the chain tensioner too, which is why I prefer the double chain.

[Ozy]

Not sure if you really need to pull the oil pan to change the timing chain? I definitely agree with the guys advice to get metal backed timing guides. I have done it w/out pulling the pan

[emsvitil]

Not sure if you really need to pull the oil pan to change the timing chain? I definitely agree with the guys advice to get metal backed timing guides. I have done it w/out pulling the pan

If the plastic guides are gone, the oil pan is where you find all the remains..............

[KDXSR5]

I found that out the hard way. When I went to rebuild the engine I am putting in my truck now, I found chunks of plastic guide stuck to the oil pickup tube. Long story short, PO had a shop change out the timing chain, shop did not take pieces out of oil pan, pieces get sucked onto pickup tube, engine loses oil pressure, timing chain skips, valves are destroyed and the engine runs like Here is a pic of the pieces i found sucked onto the pickup tube with a dorito for size comparison:

[dt]

that dorito looks good

[ZUKIMON]

I have the enginebuilder kit in my 22R, and had a DOA Racing chain kit. The DOA Racing chain kit lost the tensioner after about 5000 miles and the long guide went kaput. I don't know how in the heck it didn't jump time, but it did slap like crazy under 1500 rpm's.   I ended up putting in a Carquest chain kit and now it's good again. Like was stated above, it's really best to pull the oil pan just to make sure that there's nothing in there and it's not like it takes another 3 minutes to pull it. Also as stated above, after you pull the disty, there is a bolt in the pool of oil beneath where the gear was. Lots of people have not found this bolt and ended up busting there cover due to prying it off.

It's overall an easy job, and one that most anyone with common knowledge of engine work can do.

[Rytan]

before you pull the timing cover, be sure to remove the bolt in the pool of oil the goes vertically through the head into the top of the timing chain cover. It is in the very front most part of the head.