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RST common CVH vs specific parts

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Old Apr 30, 2023 | 05:30 PM
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Default RST common CVH vs specific parts

Looking at an engine rebuild, would like to know what parts can be sourced from any other 1.6 CVH and which ones are exclusive for the turbo.

I know the head is the same as in the XR2i, different from the rest of 1.6 CVHs, and pistons are also custom to have less compression, but can someone confirm if these parts are specific or plain common petrol 1.6 ones?

- Camshaft + sprockets
- Crank
- Valves
- Cylinder block
- Sump

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Old May 3, 2023 | 12:10 PM
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- Camshaft + sprockets -different
- Crank -different,has larger rads on the journals,also beware of oil pumps and cranks as they chamge
- Valves -different
- Cylinder block - same
- Sump -same
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Old May 3, 2023 | 12:55 PM
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That helps Nigel thanks!

Any info on what other cars share the specific parts is welcomed. F.e. camshaft I think it's the same as the XR2i, but also Escort RS Turbo? Finding certain parts for these cars is becoming increasingly diffciult :-(
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Old May 3, 2023 | 07:34 PM
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RST Block has a fitting with a pipe on for the turbo oil return.

Can this be retro-fitted to a non-turbo block?
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Old May 4, 2023 | 12:16 PM
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the hole can be drilled in the block
you used to be able to by the connection from ford

just get a newman cam and solid lifters
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Old May 6, 2023 | 06:14 PM
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Camshafts 1.6 EFI N/A and 1.6 EFI Turbo are the same. Same with MFI N/A <-> MFI Turbo.
-> EFI Turbo and MFI Turbo camshafts are (slightly) different.
Camshaft pulley was the same in 1.6 MFI Turbo, 1.6 EFI Turbo, 1.3 CVH, 1.1 CVH and some 1.6 carb 2V engines. Size has always been the same, probably just a difference in the position of the teeth.
Buy an aftermarket camshaft and an adjustable pulley.

Don't worry about the crankshaft, just make sure you use the correct size of bearings for your crankshaft. Then you can use (mostly) any 1.6 crankshaft. Early (pre '86) oil pumps were different, use a crankshaft and an oil pump from after 1986.
The oil return in the block was mentioned before, but you'll always need an EFI block as you'll need the hole for the CPS. SOME late Escort MK4 MFI/Turbo also had the CPS hole without running a CPS.
I think I read something about a little difference on the inside of the oil pans for the turbo oil return (a hole in one of the baffle plates).
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Old May 7, 2023 | 03:32 PM
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Thanks for the help guys, much appreciated. I am compiling as much info as I can searching here and in other webs, and plan to do an extensive post with it documenting my rebuild for people who might be interested in the future. I'll also try to add links to the webs where parts can be sourced from.
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