What are you m30 guys using to block off the dizzy.....

Discussion pertaining to positive pressure E28s.
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terrybpp
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Joined: Feb 12, 2006 12:00 PM

What are you m30 guys using to block off the dizzy.....

Post by terrybpp »

when going with EDIS and coil packs? I've seen the plug for the m10 & m20 but not one to fill that big fat hole in the front of our. I know I could just leave the cap on, but thats too easy. :D
Boru
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Post by Boru »

You can cut an aluminum plate (or other suitable material) that bolts on in place of the distributor cap.
terrybpp
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Post by terrybpp »

It would have to have a very tight seal though, no?
Boru
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Post by Boru »

The seal is deeper in the timing cover and seals against the rotor hub. There is also an o-ring on the black dust cover. That dust cover and it's o-ring can be retained, pressed into place by whatever you choose to replace the distributor cap with.

http://www.turbochargingdynamics.com/tcd_news_001.htm

Scrole down a few pics and you'll see Duke's engine with a cover plate.
RDAvena
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Post by RDAvena »

Use the upper timing chain cover off of an e21 320i. Blocks off the hole, looks good, and it a stock BMW part.
Boru
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Post by Boru »

Good info,Ray! So, its a direct bolt on? I'll have to hunt one down.
DMNaskale
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Post by DMNaskale »

Smooth... I got to get me a couple of those.
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RDAvena
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Post by RDAvena »

Sweeney wrote:Good info,Ray! So, its a direct bolt on? I'll have to hunt one down.
Yes, but for dual timing chains the one from the 1976 model needs to be used. That is if you have dual timing chains. Although the ETK only shows one part number so it may have enough clearence for both.
Bill in MN
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Post by Bill in MN »

You mean Duct Tape won't work?
stuartinmn
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Post by stuartinmn »

I seem to remember this came up once before, maybe last year sometime, and the end result was even though the 320i part looks right it won't fit on the M30 engine.

I have no personal experience so I'm not the authority, but it may be worth a search of the archives.

Edited to add: I think it was discussed during Duke's engine buildup, I'll bet he remembers.
Velocewest
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Post by Velocewest »

I'm pretty sure I've got a 320i front cover somewhere, and M30 heads I got mucho right now. I'll try to check the fit this weekend.
Duke
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Post by Duke »

DMNaskale wrote:Smooth... I got to get me a couple of those.
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Hey guys BTDT.........................it won't fit. I was all over it too.

The cover I have on mine is from The Power Plant. I was charged something like $150 for it, way too much.

BNC has the contact info for The Power Plant
Jeremy
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Beamter
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Post by Jeremy »

Carb'd m30s had the distributor mounted on the front of the head, correct? It seems that the mounting hole for the distributer would be a pretty small hole to close off for use with a distributorless ignition system. And since it had something there originally (the distributor), there should be an easy way to mount a blockoff plate.

Unless I'm missing something really obvious. Which is pretty likely since I'm attempting to think waaaay past my bedtime.

Jeremy
Velocewest
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Post by Velocewest »

Jeremy wrote:Carb'd m30s had the distributor mounted on the front of the head, correct? It seems that the mounting hole for the distributer would be a pretty small hole to close off for use with a distributorless ignition system. And since it had something there originally (the distributor), there should be an easy way to mount a blockoff plate.

Unless I'm missing something really obvious. Which is pretty likely since I'm attempting to think waaaay past my bedtime.

Jeremy
All M30's prior to Motronic DME had the dizzy poking out of the front cover toward the passenger fender. That would include anything up through the '82 e24. You could probably tap the dizzy hole and screw in a plug. The one for the timing chain tensioner might work.
Rich Euro M5
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Post by Rich Euro M5 »

Velocewest wrote:
Jeremy wrote:Carb'd m30s had the distributor mounted on the front of the head, correct? It seems that the mounting hole for the distributer would be a pretty small hole to close off for use with a distributorless ignition system. And since it had something there originally (the distributor), there should be an easy way to mount a blockoff plate.

Unless I'm missing something really obvious. Which is pretty likely since I'm attempting to think waaaay past my bedtime.

Jeremy
All M30's prior to Motronic DME had the dizzy poking out of the front cover toward the passenger fender. That would include anything up through the '82 e24. You could probably tap the dizzy hole and screw in a plug. The one for the timing chain tensioner might work.
Why tap the hole, I bet the hole for the dizzy would probably take a metric sized freeze plug. I was going to do this when I deleted the speedo drive on the G265 (from an E12) that I installed in my deceased 533i. I couldn't locally source a freeze plug, but I did find one of those rubber expanding freeze plugs which fit perfectly.

Rich
BDK
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Post by BDK »

The cover I have on mine is from The Power Plant. I was charged something like $150 for it, way too much
Your's was originally billet wasn't it, then powdercoated???
Duke
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Post by Duke »

BNC wrote:
The cover I have on mine is from The Power Plant. I was charged something like $150 for it, way too much
Your's was originally billet wasn't it, then powdercoated???
Yep, I was overcharged for the powder coating too. Don't get me started..........OK, he also charged me over $200 for the E34 60-2 dampener with a really bad spray paint coating. I returned it and got one from Jim "at the shop" for $30.
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