Engine rebuild saga
Posted: 22 Aug 2017, 11:23
Hi guys,
I was speeding on the highway at an amazing 80km/h when a strange and loud sound came from the rear of the car. A smoke cloud followed. By the time I managed to get on the emergency lane the engine was stuck. Long story short, a valve snapped, rotated and the piston nailed it through the cylinder head. I now have a 9 valve engine. My beloved 1.7D KY was dead.
This happened 2 month before my planned trip to Greece. I had another 1.7D KY engine (or so I thought) sitting around waiting to be rebuild. No time for that now, get the broke one out, put the "new" one in. Well, after way to much money spent on this new engine and 1 full month of investigating I gave up. This new engine is boiling like there is no tomorrow. Don't ask about the oil pressure. And don't ask how a 1.6D cylinder head ended up on the 1.7D cylinder block.
Based on the above I decided to postpone the trip to Greece (not true actually, I'll just use a "modern" car) and fully rebuild the engine. New cylinder head, new pistons, new everything that I can get my hands on.
I love cruising at 80km/h and the small and odd KY is perfect for this. I've also heard it's a fairly solid engine and pretty indestructible (is it now?). So I was 100% sure I wanted a new and shiny KY. However, while I was about to start ordering parts, someone showed me a setup that's strange and sounds to good to be true.
1.7D cylinder block
1.9D cylinder head
1.7D camshaft
1.9 TDI turbo
1.6TD JX injection pump together with nozzels
oil cooler in front
My friend has this engine working and the cruising speed is around 100km/h@3500rpm with a top speed of 130km/h.
That sounds really, really nice. But I have like a million questions.
I know the 1.7D is turbo ready, but isn't the compression way to high? If I remember correctly, TD engines have a smaller compression than D engines.
Again, what will happen with the compression if I'm going to use the 1.9D cylinder head?
Has anyone ever seen or heard about this type of conversion? Do you see anything wrong with the setup?
What I really want is a proper reliable engine. But the extra hp sounds very nice.
This is a cry for help (lots of weeping will follow). The project will become very expensive and I don't want to mess things up (not to mention I got an ultimatum from the wife).
Sorry for the long post.
Thanks,
Andrei
I was speeding on the highway at an amazing 80km/h when a strange and loud sound came from the rear of the car. A smoke cloud followed. By the time I managed to get on the emergency lane the engine was stuck. Long story short, a valve snapped, rotated and the piston nailed it through the cylinder head. I now have a 9 valve engine. My beloved 1.7D KY was dead.
This happened 2 month before my planned trip to Greece. I had another 1.7D KY engine (or so I thought) sitting around waiting to be rebuild. No time for that now, get the broke one out, put the "new" one in. Well, after way to much money spent on this new engine and 1 full month of investigating I gave up. This new engine is boiling like there is no tomorrow. Don't ask about the oil pressure. And don't ask how a 1.6D cylinder head ended up on the 1.7D cylinder block.
Based on the above I decided to postpone the trip to Greece (not true actually, I'll just use a "modern" car) and fully rebuild the engine. New cylinder head, new pistons, new everything that I can get my hands on.
I love cruising at 80km/h and the small and odd KY is perfect for this. I've also heard it's a fairly solid engine and pretty indestructible (is it now?). So I was 100% sure I wanted a new and shiny KY. However, while I was about to start ordering parts, someone showed me a setup that's strange and sounds to good to be true.
1.7D cylinder block
1.9D cylinder head
1.7D camshaft
1.9 TDI turbo
1.6TD JX injection pump together with nozzels
oil cooler in front
My friend has this engine working and the cruising speed is around 100km/h@3500rpm with a top speed of 130km/h.
That sounds really, really nice. But I have like a million questions.
I know the 1.7D is turbo ready, but isn't the compression way to high? If I remember correctly, TD engines have a smaller compression than D engines.
Again, what will happen with the compression if I'm going to use the 1.9D cylinder head?
Has anyone ever seen or heard about this type of conversion? Do you see anything wrong with the setup?
What I really want is a proper reliable engine. But the extra hp sounds very nice.
This is a cry for help (lots of weeping will follow). The project will become very expensive and I don't want to mess things up (not to mention I got an ultimatum from the wife).
Sorry for the long post.
Thanks,
Andrei