I couldn't reach lucifer via PM, but I'd like to expand his arcticle with my findings. Some of those address things like timing or mention waterpump change. It's not as long but still quite sizable. If by any chance Lucifer reads this, and would like to reedit his text with my two cents then I'm open for help.
My list is focused on differences between CAVE and CTHE, but somewere along the way it evolved to all CAV and CTH.
Quick anwsers:
Yes you can make your CAVE a CTHE
Yes you can adapt CAV/CTH A,B,C,D to become E,F,G (suggested for those who have blown CAVE like I do)
You can adapt CAXA, CAXC to be twincharged. There is one big artictle on russian site. It is a lot of work and some machining has to be done.
A bit lengthy post, but I'd like to share my findings so far. Reason one, this post often pops up in search, reason two, I'm currently trying to find replacement engine.
The following was found by using legit account of partslink24 with 2013 Seat Ibiza VIN that had CTHE and free account SuperETKA with few random VW model that had CTHA,B,C,D engine plus A1 with CTHG and my own Fabia with CAVE.
By no means this list is exhaustive or definitive ! Following list has CTH numbers. If you see any error, please correct me. If you see CAV typed after CTH assume it's for all subvariants as stated for CTH i.e CTH E,D = CAV E,D / CTH A,B = CAV A,B unless specified otherwise. If I haven't typed F or G variants in few parts, but if E has them, then you can assume those two also.
In green are parts that differ between CAV and CTH
In blue are parts specific to high horsepower variants
In yellow are updated parts but probably a general 1.4/EA111 update.
Throttle 03C 133 062 AA new partnumber from 2012 (most likely created with CTH variants)
Coil on plug 036 905 715 H superseeds F and G
Injector 03C 906 036 N superseeds M since 2012. Seat forums suggest that 03C 906 036 F was initially in CAV and can be swapped together with wiring connctors to fit CTH swap.
Engine block 03C 103 011 AR - Same for CTH A,B,C,E,F,G and CAV
Timing cover 03C 109 210 CM - specific for each engine, here CTHE it superseeded 03C 109 210 AR from CAVE.
Important. Timing cover most likely this can be swapped between engines since as far as I can tell on the inside only oil separator is different and it's external shape that's chassis matched. Oil separator can be swapped. Timing covers from older units pre-CAV cannot be used.
Oil separator made by Hengst from p/n AR is 03C 103 464 E and can be seen on photos for few different covers, but other p/n with changed final letter also exist. Way to difficult to pinpoint what's up.
Complete piston set with rings 03C 107 065 CK - same for CTH A,B,C,D,E. In CAV it has notice of importance that it MUST be used instead of previous unit and funnily enough, diagrams say explicitly those older ones are permanently unavailable.
Connecting rods 03C 198 401 D - same for CTH A,B,C,D,E and CAV
Crankshaft 03C 105 101 BM is a superseeding unit BF (BF is in some CAV) - same for A,B,C,D,E and CAV
Cylinder head with camshafts 03C 103 063 CR Specific to CTH E,F
Cylinder head WITHOUT camshafts 03C 103 264 E same for CTH A,B,C,D,E,F and CAV
Inlet camshaft 03C 109 101 DC same for CTH A,B,C,D,E and CAV
Exhaust camshaft specific between CTH and CAV but A,B,C,D,E variants of those two share them so for example CTHA has same p/n as CTHE
Cylinder head cover (one that hold camshafts) 03C 103 475 BC has been superseeded by p/n CD in 2013 for CTH A,B,C,D,E
Valve lifter/rocker 036 109 411 K has superseeded 036 109 411 E in all CTH and CAV engines but it's not inherent to CTH
Valve springs are a bit of mix. Most catalogs show one number for IN and one for EX aside from SEAT that uses one on both sides. EX-036 109 623 AC IN-036 109 623 R Most likely same for all CAV CTH
Exhaust valves 03C 109 612 have been superseeded and changed for CTH. There are three p/n that differ in last letter G, R and AE
Intakes valves show as two numbers 036 109 601 AD and 036 109 601 AL I'm not absolutely sure, but AL pops up more often with CTH. AD is in my CAVE Skoda.
Timing chain tensioner 03C 109 507 BA has superseeded AH from CAV. BA fits CTH A,B,C,D,E,F,G
Timing chain and guides 03C 109 158 A, 03C 109 509 P, 03C 109 469 K same for CAV CTH (A,B,C,D,E,F,G)
Timing sprocket and adjuster 03C 109 571 F, 03C 109 088 E same for CAV CTH (A,B,C,D,E,F,G)
Engine oil cooler 03C 117 021 J same for CTH A,B,C,D,E and CAV
Turbo with manifold is variant specific for CTHE and others (some engines like CTHG have multiple numbers including rebuilt units) and it would take way to long to figure out which is which.
Compressor 03C 145 601 E same for CTH A,B,C,D,E and CAV
Water pump 03C 121 004 J same for all CAV CTH (there used to be p/n JX, Lucifer forums did mention there was one change to this element regarding rattle, not sure if CTH related)
Sealing flange with sealing ring and trigger wheel 036 103 171 B same for all CTH and CAV
Rear flange for gearbox 03C 103 551 H same for CTH B,C,D,E most likely others too.
Intake tube for oil pump 03C 115 251 AE specific to higher power engines E,F,G but same for CAV and CTH
Oil pump chain tensioner 03C 109 507 AF specific to higher power engines E,F,G but same for CAV and CTH
Oil pump chain 03C 115 225 specific to higher power engines E,F,G but same for CAV and CTH
Oil pan specific to C,B,E but interchangable CAV-CTH (A and D variants have different pan number)
Oil pump 03C 115 105 AG same for CTH C,B,D,E - probably CAV too
Oil pump sprocket 03C 115 121 J has superseeded M but both show in all CAV CTH
Crankshaft oil pump sprocket 03C 105 209 AG specific to higher power engines E,F,G but same for CAV and CTH
High pressure fuel pump 03C 127 026 M from cav has been superseeded for CTH with 03C 127 026 P and later there was newer superseed 03C 127 026 R some forums say it solved flooding and unequal delivery to cylinders.
High press. fuel hose 03C 130 241 AS this is 4th final revision. My CAVE Skoda had AN or AP
High press. fuel pump rocker 06L 109 311 has been changed for CTH (A,B,C,D,E,F,G) and superseeds in CAV
In-tank fuel pump 6R0 919 051 N has been changed few times, this is final number. High output units also use higher pressure fuel filter. This is more chassis revision than CTH itself.
Crankpulley 03D 105 255 D same for CTH C,B,D,E and CAV
Cover in front/near oil pump 03C 103 669 H changed for CTH and superseeds p/n 03C 103 669 E for CAV
PCV piping 03C 103 474 AD shows in diagrams with note "since 2012" but doesn't explicitly say it superseeds. This number I typed is from CTHE in Seat Ibiza.
Second PCV pipe 03C 103 558 AA superseeded p/n K it's specific for CTH E,F,G notes say it has to be used with intake pipe 6R0 129 684 E
Oil jets 03C 103 157 A same for CTH A,B,C,D,E,F,G and CAV and also many other engine including those starting with letter B.
Additional info about timing. There is a separate kit from VAG that serves as upgrade, yet individual parts do not show as superseeding. Two notable are chain with less but thicker plated links and final revision of timing chain tensioner. It's number is 03C 198 229 B
Letter B is important as this defines timing chain/oil pump sprocket !
This kit HAS TO BE used as COMPLETE swap. Sprockets have different amount of teeth, and even though final ratio is the same as stock CAV CTH, it CANNOT be mismatched.
03C109158H Timing chain (changed from A)
03C109507BD Chain tensioner (changed from BA)
03C109088G Camshaft adjuster (changed from E)
03C109571K Camshaft sprocket (changed from F)
03C105209BC Lower timing/pump sprocket 19/23 (changed from AG)
03C109509AA Chain guide (changed from P)
03C109469R Chain guide (changed from K)
My list is focused on differences between CAVE and CTHE, but somewere along the way it evolved to all CAV and CTH.
Quick anwsers:
Yes you can make your CAVE a CTHE
Yes you can adapt CAV/CTH A,B,C,D to become E,F,G (suggested for those who have blown CAVE like I do)
You can adapt CAXA, CAXC to be twincharged. There is one big artictle on russian site. It is a lot of work and some machining has to be done.
A bit lengthy post, but I'd like to share my findings so far. Reason one, this post often pops up in search, reason two, I'm currently trying to find replacement engine.
The following was found by using legit account of partslink24 with 2013 Seat Ibiza VIN that had CTHE and free account SuperETKA with few random VW model that had CTHA,B,C,D engine plus A1 with CTHG and my own Fabia with CAVE.
By no means this list is exhaustive or definitive ! Following list has CTH numbers. If you see any error, please correct me. If you see CAV typed after CTH assume it's for all subvariants as stated for CTH i.e CTH E,D = CAV E,D / CTH A,B = CAV A,B unless specified otherwise. If I haven't typed F or G variants in few parts, but if E has them, then you can assume those two also.
In green are parts that differ between CAV and CTH
In blue are parts specific to high horsepower variants
In yellow are updated parts but probably a general 1.4/EA111 update.
Throttle 03C 133 062 AA new partnumber from 2012 (most likely created with CTH variants)
Coil on plug 036 905 715 H superseeds F and G
Injector 03C 906 036 N superseeds M since 2012. Seat forums suggest that 03C 906 036 F was initially in CAV and can be swapped together with wiring connctors to fit CTH swap.
Engine block 03C 103 011 AR - Same for CTH A,B,C,E,F,G and CAV
Timing cover 03C 109 210 CM - specific for each engine, here CTHE it superseeded 03C 109 210 AR from CAVE.
Important. Timing cover most likely this can be swapped between engines since as far as I can tell on the inside only oil separator is different and it's external shape that's chassis matched. Oil separator can be swapped. Timing covers from older units pre-CAV cannot be used.
Oil separator made by Hengst from p/n AR is 03C 103 464 E and can be seen on photos for few different covers, but other p/n with changed final letter also exist. Way to difficult to pinpoint what's up.
Complete piston set with rings 03C 107 065 CK - same for CTH A,B,C,D,E. In CAV it has notice of importance that it MUST be used instead of previous unit and funnily enough, diagrams say explicitly those older ones are permanently unavailable.
Connecting rods 03C 198 401 D - same for CTH A,B,C,D,E and CAV
Crankshaft 03C 105 101 BM is a superseeding unit BF (BF is in some CAV) - same for A,B,C,D,E and CAV
Cylinder head with camshafts 03C 103 063 CR Specific to CTH E,F
Cylinder head WITHOUT camshafts 03C 103 264 E same for CTH A,B,C,D,E,F and CAV
Inlet camshaft 03C 109 101 DC same for CTH A,B,C,D,E and CAV
Exhaust camshaft specific between CTH and CAV but A,B,C,D,E variants of those two share them so for example CTHA has same p/n as CTHE
Cylinder head cover (one that hold camshafts) 03C 103 475 BC has been superseeded by p/n CD in 2013 for CTH A,B,C,D,E
Valve lifter/rocker 036 109 411 K has superseeded 036 109 411 E in all CTH and CAV engines but it's not inherent to CTH
Valve springs are a bit of mix. Most catalogs show one number for IN and one for EX aside from SEAT that uses one on both sides. EX-036 109 623 AC IN-036 109 623 R Most likely same for all CAV CTH
Exhaust valves 03C 109 612 have been superseeded and changed for CTH. There are three p/n that differ in last letter G, R and AE
Intakes valves show as two numbers 036 109 601 AD and 036 109 601 AL I'm not absolutely sure, but AL pops up more often with CTH. AD is in my CAVE Skoda.
Timing chain tensioner 03C 109 507 BA has superseeded AH from CAV. BA fits CTH A,B,C,D,E,F,G
Timing chain and guides 03C 109 158 A, 03C 109 509 P, 03C 109 469 K same for CAV CTH (A,B,C,D,E,F,G)
Timing sprocket and adjuster 03C 109 571 F, 03C 109 088 E same for CAV CTH (A,B,C,D,E,F,G)
Engine oil cooler 03C 117 021 J same for CTH A,B,C,D,E and CAV
Turbo with manifold is variant specific for CTHE and others (some engines like CTHG have multiple numbers including rebuilt units) and it would take way to long to figure out which is which.
Compressor 03C 145 601 E same for CTH A,B,C,D,E and CAV
Water pump 03C 121 004 J same for all CAV CTH (there used to be p/n JX, Lucifer forums did mention there was one change to this element regarding rattle, not sure if CTH related)
Sealing flange with sealing ring and trigger wheel 036 103 171 B same for all CTH and CAV
Rear flange for gearbox 03C 103 551 H same for CTH B,C,D,E most likely others too.
Intake tube for oil pump 03C 115 251 AE specific to higher power engines E,F,G but same for CAV and CTH
Oil pump chain tensioner 03C 109 507 AF specific to higher power engines E,F,G but same for CAV and CTH
Oil pump chain 03C 115 225 specific to higher power engines E,F,G but same for CAV and CTH
Oil pan specific to C,B,E but interchangable CAV-CTH (A and D variants have different pan number)
Oil pump 03C 115 105 AG same for CTH C,B,D,E - probably CAV too
Oil pump sprocket 03C 115 121 J has superseeded M but both show in all CAV CTH
Crankshaft oil pump sprocket 03C 105 209 AG specific to higher power engines E,F,G but same for CAV and CTH
High pressure fuel pump 03C 127 026 M from cav has been superseeded for CTH with 03C 127 026 P and later there was newer superseed 03C 127 026 R some forums say it solved flooding and unequal delivery to cylinders.
High press. fuel hose 03C 130 241 AS this is 4th final revision. My CAVE Skoda had AN or AP
High press. fuel pump rocker 06L 109 311 has been changed for CTH (A,B,C,D,E,F,G) and superseeds in CAV
In-tank fuel pump 6R0 919 051 N has been changed few times, this is final number. High output units also use higher pressure fuel filter. This is more chassis revision than CTH itself.
Crankpulley 03D 105 255 D same for CTH C,B,D,E and CAV
Cover in front/near oil pump 03C 103 669 H changed for CTH and superseeds p/n 03C 103 669 E for CAV
PCV piping 03C 103 474 AD shows in diagrams with note "since 2012" but doesn't explicitly say it superseeds. This number I typed is from CTHE in Seat Ibiza.
Second PCV pipe 03C 103 558 AA superseeded p/n K it's specific for CTH E,F,G notes say it has to be used with intake pipe 6R0 129 684 E
Oil jets 03C 103 157 A same for CTH A,B,C,D,E,F,G and CAV and also many other engine including those starting with letter B.
Additional info about timing. There is a separate kit from VAG that serves as upgrade, yet individual parts do not show as superseeding. Two notable are chain with less but thicker plated links and final revision of timing chain tensioner. It's number is 03C 198 229 B
Letter B is important as this defines timing chain/oil pump sprocket !
This kit HAS TO BE used as COMPLETE swap. Sprockets have different amount of teeth, and even though final ratio is the same as stock CAV CTH, it CANNOT be mismatched.
03C109158H Timing chain (changed from A)
03C109507BD Chain tensioner (changed from BA)
03C109088G Camshaft adjuster (changed from E)
03C109571K Camshaft sprocket (changed from F)
03C105209BC Lower timing/pump sprocket 19/23 (changed from AG)
03C109509AA Chain guide (changed from P)
03C109469R Chain guide (changed from K)
