Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Engine malfunction


InkaTii

Recommended Posts

Hi. I own a 1974 tii. We did a restoration that took almost 6 years. The engine was rebuilt and the kugelfischer and injectors were reconstructed by Guss pfister. The car have been working but not great.

Here’s a video of the engine at idle.

 

Some ideas?

 

 

Thanks.

 

 

BMW 2002 Tii euro 1974, 5 speed "dog leg".

Link to comment
Share on other sites

Check your firing order? Do you have wires reversed?


Sent from my iPhone using Tapatalk

When it’s working like this you can take the third cilinder cable and it doesn’t change.

BMW 2002 Tii euro 1974, 5 speed "dog leg".

Link to comment
Share on other sites

You could try swapping that cable with a different one and see if the problem follows the cable.

 

I've gotten bad cables right out of the box.

  • Like 1

     DISCLAIMER 

I now disagree with some of the timing advice I have given in the past.  I misinterpreted the distributor curves in the Blue Book. 

I've switched from using ported-vacuum to manifold, with better results. 

I apologize for spreading misinformation.  

Link to comment
Share on other sites

You could try swapping that cable with a different one and see if the problem follows the cable.
 
I've gotten bad cables right out of the box.

Ok I’ll try. And the cables weren’t changed.

BMW 2002 Tii euro 1974, 5 speed "dog leg".

Link to comment
Share on other sites

7 hours ago, InkaTii said:


Ok I’ll try. And the cables weren’t changed.
 

 

I would definitely treat your beautiful car to a new set of ignition leads. 

rtheriaque wrote:

Carbs: They're necessary and barely controlled fuel leaks that sometimes match the air passing through them.

My build blog:http://www.bmw2002faq.com/blog/163-simeons-blog/

Link to comment
Share on other sites

17 minutes ago, Simeon said:

a new set of ignition leads

Kingsborne makes nice sets.  Available in 7mm or 8mm, with or without the plastic loom... upon request.

 

I went with the 8mm in black, no loom. fwiw.

     DISCLAIMER 

I now disagree with some of the timing advice I have given in the past.  I misinterpreted the distributor curves in the Blue Book. 

I've switched from using ported-vacuum to manifold, with better results. 

I apologize for spreading misinformation.  

Link to comment
Share on other sites

Kingsborne makes nice sets.  Available in 7mm or 8mm, with or without the plastic loom... upon request.
 
I went with the 8mm in black, no loom. fwiw.


Thanks for you reply. Kinsborne is a forum member?

BMW 2002 Tii euro 1974, 5 speed "dog leg".

Link to comment
Share on other sites

Kingsborne
 
If the issue doesn't follow ignition wire, you could try swapping injectors.
 
Very nice restoration work!


Hi thanks. I have three sets of injectors and we’ve tried changing them and there have been no change. We checked the valves some days ago. The engine was a little rough at idle but a lot more steady that this last days, it got worse after the engine wash.

BMW 2002 Tii euro 1974, 5 speed "dog leg".

Link to comment
Share on other sites

1 hour ago, InkaTii said:

 


... it got worse after the engine wash.

 

 

 

“the engine wash”.... is this new news? ?

 

Does that engine wash coincide with the commencement of the idle issues? Have you removed and dried out the inside of the distributor cap? Have you dried out the spark plug ends of the spark plug wires?

 

Regards,

 

Steve

 

 

Edited by Conserv

1976 2002 Polaris, 2742541 (original owner)

1973 2002tii Inka, 2762757 (not-the-original owner)

Link to comment
Share on other sites

I spoke with my mechanic and will start again checking the injectors. We’ll take them to the diesel testing facility.

The rough idle was happening since I took it from the shop. But yesterday I tried to start it and was even worse as seen in the video. The pressure wash was Saturday evening and immediately after was ok.

Someone know if the original 1974 spark plug cables were red or black?

Thanks

BMW 2002 Tii euro 1974, 5 speed "dog leg".

Link to comment
Share on other sites

Original cables would have been black.

     DISCLAIMER 

I now disagree with some of the timing advice I have given in the past.  I misinterpreted the distributor curves in the Blue Book. 

I've switched from using ported-vacuum to manifold, with better results. 

I apologize for spreading misinformation.  

Link to comment
Share on other sites

1 hour ago, InkaTii said:

I spoke with my mechanic and will start again checking the injectors. We’ll take them to the diesel testing facility.

 

Save your money until you've cleaned everything else.  The injectors would only (start to) malfunction if dirt was introduced into the fuel (IMO).

 

Problem started after pressure wash, hmm...

 

Have you checked:
-  vacuum hose on the side of the throttle body for cracks or dislodged?

-  wet wires at coil?  Presuming you've thoroughly dried your dizzy and plug wires

-  cold start injector for continuous drip or spray?  (clamp hose w/ engine running)

-  cold start harness for electrical short?  (disconnect while engine is running)

 

Your video is very short and only shows a few moments of idle.  Is it a steady mis-fire?  If so, that tells a lot.  One cylinder has a problem.

  • Like 1

73 Inka Tii #2762958

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t

  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...