Gv Crankshaft Has Two Blocking Holes

[mikebh8]

Hello, I replaced the water pump on my engine and I was checking that the timing is right. I removed the crankshaft and the two camshaft pins and as I was hand spinning the crankshaft I noticed there is another hole for the blocking pin... I am a bit confused now, which one is the right one?

[gordy]

To get this straight where are you locking the crankshaft about, Is it through a hole in block casing  at back of starter and into the flywheel. TDC position to certify this.

[mikebh8]

Hi, I was just about to modify the sentence, yes removing the starter and through the whole into the flywheel.

Basically the flywheel has two holes about 10-15 cm one from another.

[mikebh8]

Anyone has a clue about the two holes in the flywheel??

I have done some research on the internet... no luck.

I attached a picture with the flywheel. It looks like a bit more than 10-15 cm ( this is a screenshot from one found on ebay, I can't tell for sure on mine). In the picture, lower side, it can be seen another hole but that on the other side ( when rotating the crankshaft) does not appear.

Initially, I guess, was in the right one as the engine was running, but was spraying oil out through the dipstick, I decided to replace the water pump and check the radiator as the lower radiator hose came off as well( I opened topics regarding that too). In the past I removed the timing belt and fitted new one but not a new water pump... could it be that then I blocked the crankshaft in the wrong position and that caused the oil problem?

If anyone knows in which one the crankshaft blocking pin goes please advice as I stopped work on the car until I find out.

Thank you in advance.

[mikebh8]

Gordy, thanks for the suggestion. I got it eventually...slow mind.

TDC as in 6 o'clock position.

[macuniyanukukuk]

TDC means Top Dead Centre as in 12 o clock

[mikebh8]

TDC may stand for top dead centre but the marks on the crankshaft and the timing back cover are at the 6 o'clock position as it can be seen in the picture. The one on the crankshaft can't be seen properly but I can assure is there.

[gordy]

Glad you've got it sorted..I feel like having another beer...

[mikebh8]

Just clarify a misunderstanding...

The first whole is TDC ( where the marks align at the bottom).

BUT, to put back the timing the crankshaft needs to be at 3 o'clock, which is the second whole... I didn't finish yet to see if by spinning the crankshaft with the timing belt on is still at the given marks but it looks like it.