Taking an idea partly started here by Brookster, various other cranks have now been weighed. Thanks to infinity for his assistance with this All weights in kgs. EG (Mk1 GTI 1600), 80mm stroke: DX (Mk1 GTI 1800), 86.4mm stroke: KR (Mk2 GTI 16V), 86.4mm stroke: 9A (Corrrado, Passat 16V), 92.8mm stroke: 9A knife edged to the max: Previously posted: 1.8T (with shaft driven oil pump and external water pump): 1.8T (with chain driven oil pump and internal water pump): Also relevant: KR rods & pistons (standard), 81mm bore: (3.4/3 x 4 = 4.5kg) 9A rods & pistons (standard), 82.5mm bore: ABF rods & pistons (standard), 82.5mm bore: DX vs external water pump 1.8T: (DX is dowelled from a Slick 50 engine) ABF vs long-nose external water pump 1.8T:
Interesting data - is that ETKA-derived? The ABF has the timing ring on it, so it is different, but looking at them closely, there are clear physical differences between the 9A and ABF. The 9A pictured just has chunks of square edged cast steel, whereas the ABF has cut outs. Interestingly the knife-edged 9A has these, so I wonder if there are 2 9A versions. Will send infinity a link
i was thinking and hope this is right there is quite a difference between the cast and forged cranks see how the forged cranks have a cut out next to the main bearings and you can see wider flashing compared to the cast cranks cast forged
Mushy - spot on. That 9A is heavy. Brooky - two block weights done already (ABF + KR), but more data needed. I've done them bare, no intermediate shaft, just the main bearing caps & bolts fitted
9A (Corrrado, Passat 16V), 92.8mm stroke: Been doing some more digging around on this one, The engine this crank came from was a short block which was purchased from VW around 7 years ago. It was a brand new unstamped 2.0 16v block. I'll try and get some pictures of the block, anyone know if part numbers are stamped on the cranks??
The top one is cast and the lower one is forged on initial looks. The forged ones are denser and therefore heavier. I have come across a crank in a late 1.8 carb EX code scirocco that looked like a forged one but was actually cast (brasil origin). They must have just used a forged crank for the pattern. Brian G had an informative right up on identifying them a while back. There does seem to be variations in what cranks were fitted to some "same" code engines though. Maybe down to what was in stock at the manufacturing time.
Split from here: Latter 3 weighed already What's this 77.4? 1471cc? Will it take crank pulleys from the larger engines?
No incorrect again! 77.4mm stroke is the 1595cc engine (81mm bore). Not to be confused with the earlier 1588cc which has a 80mm stroke and a 79.5 bore. The latter crank has the same main bearing sizes as the 1595cc engine but smaller big ends. You were sort of correct though with your lucky guess of 1471cc as the 1588cc engine is of the same early era as the smaller 1471cc (80 stroke & 76.5 bore), 1457cc (73.4 stroke & 79.5 bore) and larger 1715cc (86.4 stroke & 79.5 bore). Yes, it will take the pulleys from the larger engine. Mkay
Now you've kicked the wasps nest And 1715cc? You're on your own with that one - or possibly even marooned in Brazil Time to fire up the pulleys and intermediate shafts thread, rather than clutter this one. Coming to a thread near you soon
How old are you? The 1715cc engine is the golden nugget, as it had the longer 86.4 stroke prior to 1979, thus being period and allowing a larger engine capacity for the mk1 golf in classic racing (depending on regs).
Woah got a bit dizzy there moving me about like that! Not 100% on the production date for the 1715cc. Well before the 1781cc DX though. Possibly Rabbit or other North American Jetta / Scirocco mk1 derivatives. (Audi too). They would need a huge engine for the fridge compressor out there!
Do you have one of these cranks or have you just been dribbling at the ETKA screen, looking at what's across the Pond? Anyway, the 1595cc. Vague recollection, but there's going to be a big tussle over pullies! When you say 'larger engine' you mean 8v again, don't you, young man?
I cannot even spell EKTA Chris. The 1715cc engine, and the others mentioned above are listed in the early haynes manual for mk1 golfs. I am aware of cars still running the 1457cc engine. These engines will be in the very early golfs though so pretty thin on the ground. Whoops I meant later and not larger. The "cranknose" is the same though, so the pulleys off any DX to ABF will fit. 8v or 16v. wider timing belts.
Well, you can't spell lake either I've never heard of this motor in the UK. Stop dribbling at overseas parts records! I think you're bluffing your way through this The Golf CL, GL and GX had the 1471, past 81 early dash producton, and IIRC the latter GXs had a 1600 in. I'm told the EG crank pulley doesn't swap
These cranks were fitted in various production cars, and regardless of the 1457cc engine being early or late, it does still exist and have a potential use in a very short stroke application. It is highly unlikely anyone on here will ever use one as not many folk are into classic racing. It is useful info for the minuscule % that may want to explore different avenues. Seems strange that the 1715 engine ran for so long alongside the 1781 which appears to have come out in 1982. As the 1715 engine is of the earlier design it makes sense that it existed prior to the later 1781. What is the reason an EG 1588cc GTI pulley will not fit? My 1588cc FR carb engine was the same as the 1595cc fitment.
