ZR-1 Net Registry Forums - '94 ZR-1 Engine/Car Rebuild

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'94 ZR-1 Engine/Car Rebuild

Hello Everybody!

After like two years since I bought the car from Kris and less than 10 miles behind the wheel (the car was impounded after few kilometers away from the customs office and after 3 days in italy because of expired temporary license plates and it costed me a "small fortune" to get it back) I decided to begin a big overhaul of the car.

I started immediately by fixing some small issues around the car, but everytime I removed something I found something worse behind it...
At the end a couple of month ago I decided to remove the engine and start from everything from scratch.

In this thread I will share my experience/story of the rebuild of the car and I hope to find some help from you guys.

https://i.ibb.co/4sQzJdv/20170928-141405.jpg
When I got stopped by the police...

https://i.ibb.co/kHkbw3H/20180218-162755.jpg
When it arrived at home

https://i.ibb.co/1LQV7g3/20171009-184055.jpg
At the workshop with one of its sisters

https://i.ibb.co/dMRz2CV/20190822-172051.jpg
The engine just before the removal

https://i.ibb.co/xSBmF09/20190822-181440.jpg
Almost ready to be removed

https://i.ibb.co/C6JyXKj/20190823-190510.jpg
The engine is on the ground!

https://i.ibb.co/N7cZRpK/20191016-141313.jpg
Lets the nightmare begin

https://i.ibb.co/GdjNyJn/20191016-152243.jpg
First surprise: camshaft lobe tips are ruined (seems like pitting)

https://i.ibb.co/ZzqNnJZ/20191016-152238.jpg
On both banks

https://i.ibb.co/wWX9nvS/20191028-115928.jpg
Crankshaft doesn't look bad

Re: '94 ZR-1 Engine/Car Rebuild

Now I'm already stuck...can you suggest me the way to remove the spacer on the crankshafts between the chains sprocket and the oil pump?

Re: '94 ZR-1 Engine/Car Rebuild

Quote:

Originally Posted by albeR/To (Post 300215)

Now I'm already stuck...can you suggest me the way to remove the spacer on the crankshafts between the chains sprocket and the oil pump?

If you have the sprocket removed, the spacer is a slip fit and should be able to be rotated and pulled forward off the crank.
Graham

Re: '94 ZR-1 Engine/Car Rebuild

Wish I could see your pictures, but unfortunately cannot. Keep at it, it's worth the effort.[emoji41]

Steve

Sent from my SM-G950U using ZR-1 Net Registry mobile app

Re: '94 ZR-1 Engine/Car Rebuild

Quote:

Originally Posted by grahambehan (Post 300220)

If you have the sprocket removed, the spacer is a slip fit and should be able to be rotated and pulled forward off the crank.
Graham

I removed the sprocket, but the spacer doesn't seem it wants to move...the spline also seems stuck...on monday I will try again.

Quote:

Originally Posted by jss06c6 (Post 300225)

Wish I could see your pictures, but unfortunately cannot. Keep at it, it's worth the effort.[emoji41]

Steve

Sent from my SM-G950U using ZR-1 Net Registry mobile app

I will use a different pictures host (I used Microsoft onecloud, but it doesn't seem to work)

Re: '94 ZR-1 Engine/Car Rebuild

https://i.ibb.co/31VL006/20191028-120252.jpg
Main bearings completely gone

https://i.ibb.co/hmR5ycj/20191016-184546.jpg
Pistons are ok, just a lot of dirt on them

Re: '94 ZR-1 Engine/Car Rebuild

You need to resize those pictures

Re: '94 ZR-1 Engine/Car Rebuild

Alberto,

Sono stato a Salo e Sirmione molti anni fa con famiglia. Bellissimo.

Re: '94 ZR-1 Engine/Car Rebuild

What caused you to remove the engine in the first place? I seem to have missed the background story. What could have wreaked havoc in the entire engine?