E32 M70 new rockers/lifters/pads - a bit noisy now....

[unity]

Due to a bad lifter, I decided to replace them all. Along with new rockers and pressure pads (sit on top spring). Got it all done over the weekend with time to cure all the sealant. Car runs really nice. Probably just me, but seems to have a bit more go to it also. But now it sounds like a solid-lifter car that needs adjustment. Its not horrific and the idle is smooth. It just sound like a field of locust or something. I did put the sound cover back over the injectors since I always had it on but today it was off. No difference. So has anyone else replaced rockers? I could not swing the cost on OEM so I went Topran. Physically the dimensions are the same as OEM. My thoughts are that maybe there needs to be some break-in time to re-mate the surfaces between the cams and rockers.

Thoughts?

edit: I did prime them with two drives over 15 minutes above 2,000 RPM. Wondering if the car needs to do this in park though? Cant see why it would matter. edit again: Had some free time, so did the test in park in driveway. No change after.

Under certain circumstances (e.g. cold start/many starts/rebuilt engine) valve noise can occur. For re-priming the elements the following simple procedure should be obeyed:

1. If, after the first engine start (rebuilt engine), engine start or during hot idling valve noise occurs, the engine should run at a constant 2500 RPM. Or, at a varying speed between 2000 RPM and 3000 RPM for 4 minutes.

2. Then the engine should be left to idle for at least 30 seconds.

3. If, after this cycle has been completed, the valve noise has subsided the elements have been re-primed, if valve noise continues steps 1 and 2 should be repeated.

4. 90% of all cases will be dealt with during the first cycle.

5. For the few exceptions it may be necessary to repeat the cycle up to 5 or 6 times.

6. If, after step 5 valve noise still persists, it is recommended that the noisy elements should be removed, replaced and inspected.

[sammittrue]

I'm actally having the same issue just a different brand. I used Ajusa brand lifters #11331712010 and they are noisy! Not sure if im going to have to replace them...

[unity]

Thats the brand lifters I have. The rockers are Topran. I am pretty sure its the lifters now. If the car is cold (about 35 degree F) the engine is dead quiet. Only noise is injectors. So that makes be think its the lifters and as oil warms up, they get more "squishy". So what I need to do it probably the above high RPM cycle a few times to bleed out the light weight mineral oil in them. At least that is the hope.

Sammittrue - did you only replace lifters? All of them?

The other possibility is that Adjusa lifters are not so good or defective now that two people who replaced have noise. But I still have hope for bleeding em out when I have time.

[shogun]

also the question what engine oil both of you use? https://www.bimmerforums.com/forum/s...ht=m70+lifters

[sammittrue]

Yes I replaced all 24. Soaked them in full synthetic 10w 30 for about 2 weeks while doing the build. I got the engine up to normal temps today and it never got any better.

[sammittrue]

also the question what engine oil both of you use? https://www.bimmerforums.com/forum/s...ht=m70+lifters

I flipped through this post earlier today and i wasnt quit sure what the take away was as far as results. I think he mentioned using ATF.

[unity]

I mentioned 20w-50 (could be 15w, forget). Anyway, its loaded with a half quart ATF and I will be changing it very soon to get ATF out. The prompt for me doing this change or all lifters was a second one going bad, VERY loud. The half quart ATF cleared it up, but I still wanted to replace them all so there would be no issue going forward. I may have mentioned all this in my thread.

Anyway. Days of driving. Couple more high RPM cycles, no change. Dead quiet when cold, noisy when warm.

[sammittrue]

Mine are noisy all the time... Do you know what your oil pressure is? You replaced rockers and the thrust washers right?

[unity]

Yes, rockers and pressure pad/thrust washers/thrust adapters - whatever one wishes to call those little buggers. Not sure what oil pressure I am at. Typically the car is at about 38 degrees when cold. As of late, colder. The only thing I hear is the occasional whisper from a bearing when cold. Does not take long to warm up enough to make noise. About 5 minutes or so, maybe a little more. Never sat idle to see how long.

[sammittrue]

I'm concidering putting the old lifters back in...

[unity]

Update: There has been no change in engine noise once warmed up. Today I got around to an oil/filter change. Another round of 20W-50 Castrol Synth Blend. No change after oil change, short drive and 3k RPM for four minutes. So I will drive it a little more and keep an eye on the best price for INA lifters. I can only hope that the half-quart of ATF and mineral oil from the lifters thinned the oil and the oil change will help. Have doubts.

The more I look into Ajusa, the more I find that I do not like...

https://vwclub.co.za/forum/viewtopic.php?f=94&t=119218

[unity]

Forgot to mention. When I pulled my filter cap there was no oil inside the canister. I think I may have a drainback issue which could affect oil pressure. While I have no oil pressure warnings and my oil light goes away quickly on startup always, I did order a replacement used canister to clean and rebuild using Shoguns guide. I will plan to replace as a matter of preventative if anything.

[shogun]

I found in my archive a short info about the lifters. Still not convinced that the problem is the brand of the lifters. Hope you find out.
This you might have found already before in the net:

Lifter bleed procedure: BMW SIB 11.09.07 Metallic Ticking noise coming from engine? – BMW 3-Series (E90 E92) Forum – E90Post.com

SI B 11 09 07 Engine January 2009 This Service Information bulletin supersedes SI 11 09 07 dated April 2008.

SUBJECT: Intermittent Hydraulic Valve Adjuster (HVA): “Ticking” or “Rattling” Noises
MODEL: All E82, E83, E85, E86, E88, E60, E61, E70, E90, E91, E92, and E93 with the N51, N52 or N52K engines
SITUATION: An occasional ticking or rattling noise from the HVA elements may occur during cold engine starts or frequent short-distance driving.
CAUSE: In these situations, the HVA elements may not yet have been supplied with sufficient amounts of air-free oil. This condition will not cause any damage to the engine, and usually remedies itself with a longer driving distance or operating times at full operating temperature.
CORRECTION: In the event of a customer complaint, please perform the following the HVA bleeding procedure.
PROCEDURE
Important notes: The bleed time may take anywhere from between two minutes and (in rare cases) to a maximum of 30 minutes. This procedure is to be performed on a level surface with the vehicle stationary, and in a properly ventilated area.
Procedure preconditions: Engine oil level correct – neither underfilled nor overfilled
Engine running at operating temperature
1.) Bring the engine up to an operating speed (no load) of 2000-3000 rpm and maintain this condition for three minutes (bleeding procedure).
Let the engine idle for 15-30 seconds and reevaluate whether the noise is still present or not.
2.) Engine quiet – procedure is finished.
3.) Engine noise is still present – repeat the procedure; perform steps #1 and #2 up to a maximum of 5 times.
4.) Only if the noise remains after performing the bleeding procedure 5 times: proceed by performing the procedure for a final time, also at an engine operating speed of 2000-3000 rpm, but for a total time duration of 15 minutes.
WARRANTY INFORMATION: Covered under the terms of the BMW New Vehicle Limited Warranty.
http://www.quirkyuncle.com/2013/04/1...w-lifter-tick/

[sammittrue]

I just put another 300 miles on mine with 3/4 quart of ATF. No improvement. So I thought I'd change oil weight as well. Was planning on doing it this weekend. If that doesn't do it in replacing them.

[unity]

Only put on 50 miles today. Zero change. I did record a bit but I am having an issue with my editing software crashing on upload or compiling to file.

The thing is, the car is still zippy as all heck. The change or parts has greatly improved economy and go power. I really hate to pull and replace these again. One day to do the work and another day to cure out....

[sammittrue]

Same results. Power restored. Runs great! Gas mileage is the best it's ever been in the 10 years I've owned it. But it's obnoxiously loud. It drives me crazy. I've actually lost sleep over this whole ordeal. Hey do you have a part number for the INA brand lifters?

[unity]

Just use the same BMW part number and then add a space and INA when searching.

[sammittrue]

Found it. Thanks
https://www.fcpeuro.com/products/bmw...-lifter-265005

[unity]

Well do much for replacing oil canister. The replacement is defective. There is a check ball floating around inside. Its suppose to be part of the drain back. Not even sure how it could pop out? On my canister, its sits well below the springs.

[unity]

Hundreds of miles, no change. INA lifters should be here end of next week and I get to do this all over again....

[unity]

It was far too busy a summer for me to get the INA lifters installed. Between a more than full-time job and being a photographer, just NO time. But yesterday I installed the INA lifters that have been sitting for so long. Today, after the sealants cures, I fired it up. Even cold the engine was pretty quiet. But with Ajusa lifters, it was pretty quiet when cold too. Warmed up a bit is when the Ajusa lifters got noisy. But I am VERY, VERY happy to report that even when warmed up, the engine is DEAD quiet! The embarrassing tapping noise is a thing of the past.

SOLVED!