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Pedrocalima

Yet another engine noise case

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1 hour ago, uai said:

You can also download the BMW M POWER METER App for ios - allows you to have your eyes on the road instead of watching that thing while flooring it.

I've also formerly used the dynolicious app with surprisingly precise results compared to a real dyno but it's not longer maintained.

 

 

 

It looks like that app is not available anymore.  I get this message: "This app is not currently available in your country or region". 

 

Any other recommendations for a dyno app?

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4 hours ago, NYTransplant said:

"This app is not currently available in your country or region". 

 

probably as you need to exceed 55 mph to make it work...they skipped the US :D

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(edited)
8 hours ago, uai said:

You can also download the BMW M POWER METER App for ios - allows you to have your eyes on the road instead of watching that thing while flooring it.

 

Don't worry, I always keep one eye on the road.

Marty_Feldman_1972.jpg.1cd6107d7cec08db2e26c0788c59929d.jpg

Edited by '76mintgrün'02
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Don't worry, I always keep one eye on the road.
Marty_Feldman_1972.jpg.1cd6107d7cec08db2e26c0788c59929d.jpg

Classic.. Cannonball run.



Sent from my iPhone using Tapatalk
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(edited)

Now I have a clear reason for the ticking noise:

 

1968921968_WhatsAppImage2019-08-26at9_39_34PM.thumb.jpeg.160c1479b543312581005db10c0820ae.jpeg

 

Due to the new camshaft the rocker arms are moving a bit higher and the last one was hitting the oil distribution pipe.

We inspected the cam lobes and everything is ok but now we need to place this pipe a bit higher on the head.

 

Has anyone had this issue before? The cams are 282 degrees so not even that aggressive.

Edited by Pedrocalima
My very good english skills :)
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I was thinking it will be obvious once valve cover is opened. The rockers look kinda rough. Aftermarket ones? If just one is touching the tube it could be ground down a bit. Be sure to check others for possibly less contact.

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It's a good question if they are aftermarket ones. I have no idea. Don't they look stock? What do the stock look like?

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They look like the old style OEM but could still be aftermarket. There should be a roundel mark on side if they are original ones.

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Ok so it's done. We ended up installing a simple electrinic injection module to use only the ignition part with a hall sensor on the distributor. Everything worked good and as a plus we got precise temperature measurement that will also be used to adjust the cold ignition. We will just for safety also install a oil pressure sensor and have alarms on oil pressure and water temperature.

Not sure if I said before but we have 11:1 compression and a 280 degress camshaft with a Weber 40 on a Lynx manifold.

The engine generated 122 HP and 18,7 kgfm. Here is the curve in 3rd gear:

1309615713_WhatsAppImage2019-09-10at19_14_56.thumb.jpeg.55374a869537885a89cd8bad32307bb0.jpeg

 

We are running Brazilian generic pump gas (30% ethanol) and there is a bit of margin due to our very frequent poor gasoline quality.

Overall I'm happy with it, we should get the car next week so the real test drive is still to come.

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On August 27, 2019 at 6:10 AM, Pedrocalima said:

It's a good question if they are aftermarket ones. I have no idea. Don't they look stock? What do the stock look like?

Here is a pic of my rockers. I did an engine swap through BMW. Had my BMW dealer order a stock crated long block from factory and they installed. This is when they adjusted the valves during break in. So I would say that is what stock looks like.

image.jpeg

image.jpeg

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