No start after transmission repairs..

[///Monster123]

OOOF! The cam bolt was loose? Exhaust cam stationary. Hopefully none of the valves were sticking down too far. The valve springs will want to push the cam to a position that is partially open.

When you get the engine back together I think it would be interesting to see your compression numbers. Fingers crossed everything checks out.

[upallnight]

Originally Posted by ///Monster123

OOOF! The cam bolt was loose? Exhaust cam stationary. Hopefully none of the valves were sticking down too far. The valve springs will want to push the cam to a position that is partially open.

When you get the engine back together I think it would be interesting to see your compression numbers. Fingers crossed everything checks out.

What I want to know is how the cam bolt became loose after a transmission repair? Is there something the OP isn't telling us?

[andrewwynn]

Originally Posted by turquise1

Update :

With the hope of no engine damage, I will re-time that side and see what happens.

Ozzie

I think he told us. "re time" implies was done before. I think it was just a previous repair job so it wasn’t considered to be integral to the new problem.

Eg the timing chain was worked on last summer and The engine ran fine until the transmission work was done and then coincidentally after the transmission work was done and the bolt for the cam got loose and everything went to hell. just a guess

[turquise1]

Ok, I guess I have to admit it. I have the BMW version of 'Munchausen syndrome by proxy'. Oh, the amount of damage I did to the car to have attention from several dealers and mechanics. It never stops, I always find something to break to ask questions on these forums as well..


Well, no. I do not have that of course. You can see the story here :


https://xoutpost.com/bmw-sav-forums/...sion-work.html


I think we broke the timing as we were trying to install the TC bolts and tried to turn the crank with a lot of resistance when the TC bolts were not fully in. The engine was never timed by me before. I had some bent valves long time ago. I am guessing it was done then..


Anyway, I got the timing tools and ready to start the timing next week.


Cheers,


Ozzie

[andrewwynn]

Send me a text I might be up for helping


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[turquise1]

Originally Posted by andrewwynn

Send me a text I might be up for helping

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I will for sure. Do you think those cam locking metal blocks can handle the high torque to loosen / tighten the cam bolts or should I apply opposite force with 27mm wrench each time to make sure nothing breaks?


Cheers,


Ozzie

[andrewwynn]

Absolutely need to counter torque. You can use the lock blocks for the reluctor wheel. I used a wrench we cut down a bit to fit in nicely.

Also; not need for this job but the crank locking pin will not hold to remove crank bolt.

Back to cam bolts: hit with hammer to break the bond beofee loosen they get welded together it takes like 200 ft·lb to release and can break parts.

[///Monster123]

Agreed. The cam locking tools are not intended to hold the cams while torquing the cam bolts. They are only intended to locate the cams and cam gears. And open end wrench will be necessary to hold the cams while torquing the the bolts.

I also agree that the little flywheel locking pin is no good for tightening or loosening the crank bolt. You need to buy the correct tool for that and also a gigantic breaker bar.

[andrewwynn]

I built the crank holding tool from angle iron but I wonder if can rent from auto parts store. The second one I did the radiator wasn't in the car I just used my impact wrench knocked it loose in a few seconds.

[turquise1]

Thanks, interestingly I had to cut a 27 mm wrench slightly as well because it was not fitting in there as I was rotating the Bank 1 camshafts.


Also, do you trust the multimeter test for the timing? When I did the test yesterday, I did not get any continuity which made me believe I had to retard the vanos but I am also reading many people do not trust that test. I am asking because I am trying to avoid loosening the intake side but if the timing is not right, I will have to..



Cheers,


Ozzie