BMW M20 valve ticking or what?

[Geeze104]

Sounds like Pistons

[zepyoor1234]

check the sparkplugs wiring . One of them might be loose

[Dirtnap300]

sounds like the injectors

[dadsrag]

@Dirtnap300 - In person, injectors sound like a sewing machine: "ticka-ticka-ticka-etc." This sounds like: "whacka-whacka-whacka-etc."

[Dirtnap300]

@dadsrag I just adjusted my valves last night and i went to .080 and i dont hear a sound other than than the injectors. Maybe the valves are adjusted just a bit loose or even at the recommended .010 they can clatter a bit with lighter viscosity oils

[MrPERCENTYL]

camshaft - timing beelt?, bearing shell - crankshaft bearings?

[dadsrag]

@MrPERCENTYL - I don't think so. Engine runs beautifully other than the noise.

[TheDaikashido]

I just did the valves on my 89 ix and it sounds the same.

[dadsrag]

@TheDaikashido - Thanks for the information. The car still runs great and the sound hasn't changed.

[carsnwomen91]

i'd say the valves are adjusted a bit on the loose side... not saying you went over the spec but when i did valves on my ninja 250 i learned that if the feeler gauge (max spec) slides in and out smoothly (but still with some drag) its too loose. i had some clatter, slightly louder than this. So i went back, used the same feeler and tightened then until the feeler gauge slides with difficulty. they were perfect after that.

[dadsrag]

@carsnwomen91 Thanks - I'll give it a try.

[TOMMYSPANNER]

mine ticks too, and the injectors do tend to be noisy, check rocker lobes too , maybe fit roller bearing rockers, if it runs fine, then it,s ok it sounds like mine, and I,m a mechanic.

[dadsrag]

@TOMMYSPANNER Are roller bearing rockers even available? A set of VAC billet rockers cost more than my entire car is worth :(

[DrGrovesvideos]

Poor valve adjustment. Do another one

[dadsrag]

@DrGrovesvideos You are likely right, but I adjusted them beauties to the absolute best of my ability. I don't think that doing it again with my skills would improve the quality of the job.

[OldSkoolEX]

sounds normal-ish to me.. mine ticks similarly after adjusting the rockers, was overall louder before but the louder/slower tick remains after adjustment. checked my injectors with the old screwsriver to the ear trick and dont think its injector relates, car runs fine also. my guess is possibly the cam oil sprayer, maybe one rocker isnt getting hit with as much oil as the others?

[Beardinc]

so did u ever figure out what it was? my car just began to tick like that

[Kenny6253]

Worn rocker tappets.

[jlubez]

that does sound particurarly loud...I'd try to adjust them again and be sure to have the engine cold, use a feeler gauge and set to .25 mm

[elliottbradshaw]

thats injector noise I beleive

[dadsrag]

@elliottbradshaw Nah, this is louder than even the clattery GDI injectors in a new car.

[lambrightdotcom]

They were adj with the wrong .mm I think its 10mm is normal.

[dadsrag]

@lambrightdotcom They were done at a tight 10mm.

[VQ35DER]

re adjust valves well rocker eccentrics again and see cuz its ticking the first adjustment probably wasnt done rite

[VQ35DER]

i think its the rocker arm ticking on the cam due to ware on the lobes

[grancapri]

hi there, i run a bmw specialist service center here in the uk and that tick is a common problem on m20 engine with low miles.

you need to have the rocker shafts replaced in the cylinder head, then it will be fine.

[plicha100]

hi try to change Valve Guide

if the valve guide is broken, the valve adjustment doesn't work.

[thelaughingmadman]

Sounds just like mine, just bought it.

New camshaft and fuel injection, so it ticks quite alot, but runs w/o problems, so this shouldn't be dangerous.

Although, not cat, just two mufflers, sounds quite alot :P

[dadsrag]

darren15509, Thanks for your comment. I know that all M20's tick, but mine seems extra loud. Yes, I replaced a Remus with Dynomax. It's much quieter, and better sounding now, without the obnoxious 2000 RPM droning.

[darren15509]

that ticking is normal for m20`s. there`s no way around it, they all do it, and its fine. and you replaced a remus exhaust with a dynomax? :S

[spike68]

it could just be the regular valve noise, but it does seem a little loud.

unless something was done wrong when the valves were adjusted