Author Topic: 22R motor problems (Read 8729 times)

1980yota · « **Reply #1 on:** Sep 02, 2011, 06:00:58 AM »

The 22r is an interference engine. There could be damage to the valves. Pull the timing cover and put the chain on correctly, set the distributor about 8-10 degrees advance and try to start it. If your missing on one or multiple cylinders or if it wont start then its time to pull the head.

santa cruz crawler · « **Reply #2 on:** Sep 02, 2011, 06:43:06 AM »

X2 very easy fix if valves are still good.

Yota87Truck · « **Reply #3 on:** Sep 02, 2011, 07:09:27 PM »

anybody else have this problem? or know somebody who accidentally put timing chain on wrong and put it all back together and tried to crank it over. Any actual experiences? I plan to do the timing chain first. Less $$

Snowtoy · « **Reply #4 on:** Sep 02, 2011, 10:18:51 PM »

A bent valve can do piston damage, so it would be worth pulling the head and checking the valves just to avoid compounding the problem. A full gasket kit from enginebuilder.com is less than $70, a lot cheaper than having to replace a piston.

1980yota · « **Reply #5 on:** Sep 05, 2011, 07:23:29 AM »

If the valve is already bent it has already done all the piston damage its going to do. It could do damage to the head but just a quick crank will tell if there is valve trouble or not. I think its worth a shot to try the timing chain first not only to save money but to save time.

79coyotefrg · « **Reply #6 on:** Sep 06, 2011, 02:44:12 PM »

put the timing chain on correctly and set the timing CORRECTLY then run a compression test. chances are very good that you have at least one bent valve but the compression test will show if they were bent bad enough to warrant pulling the head off.

if it was a perfect 180* out then the valves shouldnt have made contact since the valves would be opening on the compression stroke and closing on the exhaust stroke. 10 degrees off and the motor would have had serious binding issues and if rotated with the starter valves would be bent badly.

fix the chain, run compression. if you post and I dont reply that day send me a pm.

DONT FORGET the 8m bolt (12mm head) under the distributor drive gear. its in that pool of oil the gear rids in.

Yota87Truck · « **Reply #7 on:** Sep 06, 2011, 06:32:03 PM »

Well the progress is slow. I am just taking my time on it. I plan to fix the timing chain and see how things look from there. (compression test, etc...) what numbers should I expect for bent/non bent valve?

79coyotefrg · « **Reply #8 on:** Oct 01, 2011, 12:55:21 PM »

Quote from: Yota87Truck on Sep 06, 2011, 06:32:03 PM

Well the progress is slow. I am just taking my time on it. I plan to fix the timing chain and see how things look from there. (compression test, etc...) what numbers should I expect for bent/non bent valve?

bent valve look for anything under 50 psi

for non bent 100 psi to 140, if the rings arent good, 150-180 for good rings

Yota87Truck · « **Reply #9 on:** Oct 09, 2011, 09:03:19 PM »

So as I am doing the tear down(I know I have been really slow) I am wondering how the timing chain got to be 180 degrees off. The information I have collected leads me to believe that this motor has 100k miles. The oil/crud on this motor during tear down looks like it hasn't been tore into at all recently. The only thing that looks new is the carb (possible recent rebuild).

Anybody know how a motor could become exactly 180 degrees off with out the removal of the timing/front cover?

Snowtoy · « **Reply #10 on:** Oct 09, 2011, 09:32:22 PM »

If the PO didn't know what he was doing, and only went by the timing marks, the engine could have been 180* out when he removed the old t-chain.

The appearance of not being opened up doesn't necessarily mean it hasn't been, not everyone will clean engine components before rebuilding it, especially if they are in a hurry.

Richmondo · « **Reply #11 on:** Oct 10, 2011, 07:39:51 PM »

Quote from: Yota87Truck on Oct 09, 2011, 09:03:19 PM

So as I am doing the tear down(I know I have been really slow) I am wondering how the timing chain got to be 180 degrees off. The information I have collected leads me to believe that this motor has 100k miles. The oil/crud on this motor during tear down looks like it hasn't been tore into at all recently. The only thing that looks new is the carb (possible recent rebuild).

Anybody know how a motor could become exactly 180 degrees off with out the removal of the timing/front cover?

Could have pulled the head or the cam with the crank 360 degrees out but went back in with the cam in the correct position for TDC. That's about the only explanation I could come up with...

skylinetoy · « **Reply #12 on:** Oct 11, 2011, 07:30:03 PM »

Quote from: Snowtoy on Sep 02, 2011, 10:18:51 PM

A full gasket kit from enginebuilder.com is less than $70, a lot cheaper than having to replace a piston.

With my experience with this kit everything is good except the headgaskets. I have used a couple myself and have several buddies who have also. Six months to a year and the gasket will blow. I usually use everything else and buy a good felpro head gasket.

79coyotefrg · « **Reply #13 on:** Oct 11, 2011, 09:53:35 PM »

Quote from: skylinetoy on Oct 11, 2011, 07:30:03 PM

With my experience with this kit everything is good except the headgaskets. I have used a couple myself and have several buddies who have also. Six months to a year and the gasket will blow. I usually use everything else and buy a good felpro head gasket.

Felpro??

OMG NO, get a Toyota head gasket from the dealer of D&J Rock

TURBO · « **Reply #14 on:** Oct 12, 2011, 08:18:40 AM »

x2 on the Toyota head gasket, no reason to go cheep on a head gasket

Yota87Truck · « **Reply #15 on:** Oct 12, 2011, 10:41:47 PM »

For Sure. I like buying parts directly from the dealer, depending on how much they want compared to Autozone/Checker/Napa, etc.

79coyotefrg · « **Reply #16 on:** Oct 13, 2011, 09:43:06 PM »

Quote from: Yota87Truck on Oct 12, 2011, 10:41:47 PM

For Sure. I like buying parts directly from the dealer, depending on how much they want compared to Autozone/Checker/Napa, etc.

they dont sell a headgasket of a quality that you can depend on. I'm SERIOUS. Ive done this 100 times. Napa used to sell Victor gaskets and they were OK, but nothing compared to DJ Rock (what engnbldr sells) or the Toyota factory (you buy from a toyota dealer parts department) gasket.

Mega Baby Huey · « **Reply #17 on:** Oct 13, 2011, 10:32:13 PM »

when you tearing into it? I'm probably going to come down to get a new rear window for my 4runner (did i tell you i shattered it?) and i'd love to tear into a motor while i'm down there!

Yota87Truck · « **Reply #18 on:** Oct 13, 2011, 10:38:04 PM »

Quote from: Mega Mormon on Oct 13, 2011, 10:32:13 PM

when you tearing into it? I'm probably going to come down to get a new rear window for my 4runner (did i tell you i shattered it?) and i'd love to tear into a motor while i'm down there!

I have all the accessories removed. I just need to drop the oil pan and pull the front cover off now. I haven't had much time to mess with it but this one is stuck on pretty good compared to previous front covers I have pulled.

skylinetoy · « **Reply #19 on:** Oct 16, 2011, 06:27:45 PM »

Do what you would like. Just putting my

in. I have never had a problem with Felpro and ran them on my race motors for years also. I have blown 2 Rock gaskets myself and know of about 5 others that have. Toyota is definitely your best option if you want to spend the change though

Sparkplug · « **Reply #20 on:** Oct 16, 2011, 06:44:33 PM »

The toyota vs felpro gasket debate is stupid. I use felpro all the time, they work fine. Ive used over 10, and none have blown that I know of yet. Only time ive ever had a hg fail was a rock gasket matter of fact, but it was also the only time we didnt surface the head, and it had kinda corroded jackets so that could have been it.

There are 2 dif fel pros I know of for 22r. One is the kind that seals and kinda sticks to the block and head, its silverish flaky material,the other is almost an exact copy of the toyota one. Both work fine.

kneedownnate · « **Reply #21 on:** Oct 17, 2011, 09:29:50 AM »

The graphite ones you speak of are the ones that've had all the issues over the years (and yes, it's been well documented), and the ones that look like a toyota gasket are the ones they developed after they removed their heads from their asses

79coyotefrg · « **Reply #22 on:** Oct 17, 2011, 04:10:39 PM »

Quote from: Sparkplug on Oct 16, 2011, 06:44:33 PM

The toyota vs felpro gasket debate is stupid. I use felpro all the time, they work fine. Ive used over 10, and none have blown that I know of yet. Only time ive ever had a hg fail was a rock gasket matter of fact, but it was also the only time we didnt surface the head, and it had kinda corroded jackets so that could have been it.

cant blame it on the headgasket then.

Yota87Truck · « **Reply #23 on:** Oct 17, 2011, 11:24:04 PM »

I have had several head gasket problems in the past (both jobs I have done and had a shop do) I'm not sure what gaskets were used but I think another issue is the head bolts. I never replaced the head bolts with new ones or studs and I don't know what the shops I went to did either.

79coyotefrg · « **Reply #24 on:** Oct 18, 2011, 12:20:14 PM »

Quote from: Yota87Truck on Oct 17, 2011, 11:24:04 PM

I have had several head gasket problems in the past (both jobs I have done and had a shop do) I'm not sure what gaskets were used but I think another issue is the head bolts. I never replaced the head bolts with new ones or studs and I don't know what the shops I went to did either.

make sure the head bolt holes are clean and no trash in the bottoms and you should be fine. I am still using the 20R headbolts that came with my truck and thats been about 5 headgaskets ago.

santa cruz crawler · « **Reply #25 on:** Oct 24, 2011, 01:52:52 PM »

Ide take the valve cover off, take the cap off , look at the rotor ,
Then look for the . On the cam gear!!
If you don't have a super loose rocker , probably fine imop,
50/ 50 chance

twistedtoy92 · « **Reply #26 on:** Oct 29, 2011, 08:11:00 PM »

ARP head studs, good surface on block deck and head deck with a factory Toyota HG, clean and proper torque... you will not have an issue!


	Poll I bought a truck and somebody put the timing chain on wrong with the cam gear off 180 degrees from the crank. What should I do? The valves are bent, pull head fix 3 (23.1%) valves are fine, fix timing chain 3 (23.1%) valves may/may not be fine, fix timing chain and see 3 (23.1%) valves may/may not be fine, pull head and fix everything 4 (30.8%) Total Members Voted: 13

Poll

I bought a truck and somebody put the timing chain on wrong with the cam gear off 180 degrees from the crank. What should I do?

Yota87Truck [OP]

Yota87Truck [OP]

Yota87Truck [OP]

Yota87Truck [OP]

Yota87Truck [OP]

Yota87Truck [OP]

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