914 2.0 > 3.0 GT Conversion, On the road! Options

[horizontally-opposed]

What a great looking car!

As or carb sorting on a fresh six…been there done that. Had them gone through on the bench by someone who knows Webers before install, but the car drove horribly until I booked a day on the dyno. That day picked up drivability (big time, which was the goal), but also power, moving from 135 hp at the rear wheels to 169.9. The carbs were so much nicer to live with after that, and have been tweaked ever so slightly since. Pretty nice now, but any estimation has to be tempered by the fact that they're…carbs.

[MM1]

Well done, Sir! Yes . . .we crave that video with proper, glorious sounds!

[defianty]

I think they call this a thread resurrection!

The journey is never over and it's time for a well overdue update. Although not an update I wanted to do.

Since hitting the road with the finished car it hasn't all been good. In fact, I've had very little enjoyment out of it since completion and sadly I've only covered just over 1000 miles. Most of those were spent wondering if the engine was going to get me home due the rattling sounds it was making and the ever decreasing oil pressure. (IMG:style_emoticons/default/headbang.gif)

During the summer last year after heading back from a local car and coffee meet things took a turn for the worse and the car was seriously down on power. Having exhausted every option available to me I pulled the engine out of the car, stuck two fingers up at it, closed the garage door and walked away.

It was months until I got back stuck back in after I'd gained some enthusiasm and rapidly running out of time to get the car to Le Man for the Classic.

After many hours of research I encouraged to do a DIY rebuild of the engine. It still scares the hell out of me saying that but the more I get stuck in the more my confidence builds.

I'm just on the strip down and investigative stage at the moment, but I'm enjoying the process and learning lots along the way.


That day about eight months ago when I decided enough was enough!

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537093.1.jpg)


Ancillaries off and getting down to it.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537094.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537094.3.jpg)


The first unexpected surprise! - 3.2L heads

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537095.4.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537095.5.jpg)


New workbench with little space left already!

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537096.6.jpg)


Next step is to split the case - this shot was taken before I got a new engine yoke.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.postimg.cc-6621-1647537096.7.jpg)


More updates soon as we get inside this thing!

[Root_Werks]

Son of a B$!@#%, really sucks to have to pull an engine.

Not seeing any smoking guns yet which means it could be rod or main bearing?

[Dion]

Oh no Stephan!! Sorry that happened. Uggh, my current worse nitemare.
Well you dived in Sir. Hats off to you! I know you’ll sort it.
Keep the pics and lessons coming.

[VegasRacer]

Enjoy the journey. (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/hissyfit.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/blink.gif)





The rewards will be great on the other end. (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/boldblue.gif)

[rgalla9146]

Unbelievable Stephan !
I'm happy to see you back but wish it was for a happier reason.
I kept up with your thread and loved every minute.
Here we are years later and MY long awaited engine (3.0) proved to be
'not so healthy' too.
Sooooo..... back out it is and the start of a deep dive.
Best
Rory

[Lucky9146]

Stephan,
Good to hear from you but sorry for the circumstances.

We shared many like experiences at the time on our cars during our builds, although you are a far better metal worker than I. (IMG:style_emoticons/default/pray.gif)

I went though my 3.0 and would be happy to provide any info I can to help.

Best to you (IMG:style_emoticons/default/beerchug.gif)
(IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/white914.jpg)

[tygaboy]

Certainly sucks but you've demonstrated your ability to master EVERYTHING you attempt and it's a safe bet that "successful engine rebuilding" will soon be added to your CV.

Can't wait to see it back on the road and you with a big smile! (IMG:style_emoticons/default/aktion035.gif)

[defianty]

Thanks for the encouragement guys.

With help we split the case last night and essentially found an engine in very good condition. I'll post photos later. No evidence of any wear to the crank or any bearings just a few very light marks. We'd already inspected the pistons and cylinders to see no issues.

The worst wear was founds on all the timing gears on the intermediate shaft which is what I expected as it was a timing chain like noise that was driving me mad, they will all be replaced with new Porsche parts.

All in all, I think I got away lightly and the shopping list, although lengthy, could have been a lot worse and more expensive.

Next step is to clean everything and get some parts to the machine shop for polishing etc.

We're certain the loss of power is not attributed to the condition of the engine, which is great news. We do have other thoughts and will address those as we put everything back together again.

[Mark Henry]

While apart get a full engine balance done and check the valve guides.

[defianty]

While apart get a full engine balance done and check the valve guides.

Absolutely, all planned.

[Mark Henry]

While in there you might want to think about re-plating the cylinders and adding some 9.5:1 CR pistons, opening up the ports on the 3.2 heads and a set of healthy cams. That would wake the engine up, likely getting you over the 200hp mark.

A link to my 3.0 engine build here.

[rgalla9146]

Short stroke 3.2 (IMG:style_emoticons/default/shades.gif)

[Krieger]

Have you taken apart the oil pump yet? See if the two nuts holding it together are loose. I had a similar power loss problem with my 3 liter. The nuts that hold the pump together were finger tight.

[defianty]

While in there you might want to think about re-plating the cylinders and adding some 9.5:1 CR pistons, opening up the ports on the 3.2 heads and a set of healthy cams. That would wake the engine up, likely getting you over the 200hp mark.

A link to my 3.0 engine build here.

As tempting as that is I'm happy with the power as it was. It's a 930/10 so already 204bhp. Plus with a 901 box I don't want to push it too much.

[defianty]

Have you taken apart the oil pump yet? See if the two nuts holding it together are loose. I had a similar power loss problem with my 3 liter. The nuts that hold the pump together were finger tight.

Not yet, that'll be tomorrow. I'm fairly sure I'm going to replace the pump for piece of mind.

[targa72e]

Pump is easy to inspect and with no major engine failure probably in good shape. If good just clean and reuse. Keep all the gears in same orientation while dissembled. Lots of information available on what to look for when inspecting.

john