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Replaced 24 lifters, engine still has LOUD tap.
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10-11-2018, 11:34 PM | #1 |
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Replaced 24 lifters, engine still has LOUD tap.
I have a E93 335i with about 75,000 miles that I bought from an auction so I have no history on the car. The engine taps and I assumed it was a lifter. I just finished replacing all 24 lifters, the spark plugs and checking/cleaning everything in the head area including making the VANOS gears and solenoids spotless. The engine seems to run OK and has decent power but I have nothing to compare it to. Could a bad timing chain tensioner make a constant loud tap? I am starting to think rod bearing since I am out of ideas. I found a stringy piece of old rubber at the top left side of the timing chain guide. It is likely an old serpentine belt that got sucked in at one time. I reused my belt tensioner when I did the lifters but maybe it is bad and is causing the noise? That seems to good to be true. If it is not that then I can only imagine lower engine like rod bearings? I am at the point where I am not sure if I should try a chain tensioner or just start parting this thing out before I waste more and more money. P.S. My tensioner has a metal gasket so maybe it was replaced already once?
I spent $2,650 on the car, then almost $5,000 more on a water pump, full body kit, M3 fenders, fiberglass hood, xenon headlights, etc. I just found some hidden frame damage in the rear so if the engine needs more work I am probably just parting this car out and losing a few 1,000 when all is said and done. Sorry for the rant, this money pit has depressed me. If anyone can think of what would be causing a constant tap please let me know. It taps with the RPM's and at idle it is there but when you rev to 1,500 rpm or above it really sounds loud. |
10-12-2018, 12:29 AM | #3 |
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10-12-2018, 09:24 AM | #4 |
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10-12-2018, 09:31 AM | #5 |
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I have already replaced the oil four times doing flushes, etc. I just don't know how to diagnose this noise. It could even be a crack in a turbo or manifold for all I know., I need to determine if it's lower end mechanical. my plan right now is to dump a few cans of STP motor honey in it and see if it gets quiet. If it does then I know it's lower and mechanical and I'm probably going to junk the car since it has a myriad of other problems and a salvage title.
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10-12-2018, 09:44 AM | #6 | |
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2011 E92 335is, Space Grey/Coral Red, 6MT.
RB 2+, Wedge tuned. E85 PI coming soon. |
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10-12-2018, 10:02 AM | #7 | ||
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10-16-2018, 09:52 AM | #10 | |
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Does anyone need some lifters? |
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10-16-2018, 01:28 PM | #11 |
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Interested in knowing more about the car you purchased at auction. You said it had a salvage title? From what? It's always been a dream of mine to buy a cheap ass car at auction and fix it up. Obviously it's a gamble as you're seeing, but if cheap enough I may want to give it a go.
I see some people who want $5000-7000 for busted up 335i's that need a lot of work...for $3000 I might be a buyer. Public auction or do you have a dealers license? I hear they're significantly cheaper at the non-public auctions. |
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10-16-2018, 01:46 PM | #12 | |
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10-16-2018, 03:18 PM | #13 | |
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Did you know you were looking for a 335i or how did you come across the car through the auction? For me to make this happen I feel I need to pick a car and just keep monitoring the auction lists for a 335i to pop up. Did you bid in the dark or did you get to check out the car first? Thanks for the info, I know it seems sorta taboo to buy a salvage car or get one at an auction but if you know how to work on cars I don't see the problem. I'd rather fix up a car that cost me significantly less money overall than pay full price for something and end up fixing it anyway. Sounds like you had to put up with some crap in the beginning but in the end it will work out. |
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10-16-2018, 03:27 PM | #14 | ||
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On the way out I also took a 60 second glance at the car I actually bought; a 2007 335i convertible. If I had taken more time to look I probably would have noticed some of the problems like the rear frame damage. I was bidding on the red one but got out bid. After losing it I went for the black 335i because it was cheap and hey, it was a 335i. when I went to pick the car up it didn't even have a battery in it. I didn't even know if it ran until I got it home and put a battery in it. All in all it has worked out but this not for faint of heart. Plus buy a carfax and look at the history as best you can. One other hassle, one key and one key fob. |
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10-17-2018, 06:37 AM | #15 | |
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Here's a perfect example: https://www.youtube.com/channel/UCwO...SxFO5mA/videos |
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