hi all
so i am pulling the head off my 602 and i went to remove the upper chain guide and i got the pins out with no problem but the guide wont come out, the top half moves around but it feels like the bottom is stuck, i removed the chain tensioner and cam sprocket

cheers

kenny

Steel pin - aluminium alloy head nightmare eh?

I still have one stuck in an old M102 head that is never ever gonna come free.

Here's how I try to remove them =>



(from this thread http://www.peachparts.com/shopforum/tech-help/341121-achtung-das-schweinhund-baby-benz-thread-38.html)

Larger sized nuts to use a push for a bolt that screws into the pin

If it isn't corroded stuck at a "molecular level" you might have a chance of success

Heat can help but be careful with alloy heads

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

I believe I waited until I had removed the cam sprocket it was a non event for me.

i got the pins put with a tool i got and it was a non event. is that the only thing holding the guide in?those two pins? i have pulled rather hard on it and again the top is loose and the bottom wont move.could it be sealed in place?

If you've pulled the correct two pins, it should be free.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC

This illustration really does not show how to do it very clearly. (Sorry stretch, your explanations are usually very very clear) The bolt needs enough larger sized nuts and or washers so that when you screw the bolt in it pulls the pin.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

yeah i dont see anything that could be holding the guide in, and i did not see any other pins to remove from the front of the head

You're quite correct - sorry about that - I must be on the blob

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Sounds like you may not have the correct lower pin out.

__________________
Jim

well i looked at the head again and there is no pin or anything left to pull out, is the guide just supposed to pull right out? can i go ahead and take the head off ? or do i really need to get the guide out first?

I must correct myself: If you've got the correct two pins pulled, you can now pull the head, and the guide will be left in place on the chain. The guide goes over the top and under the bottom of the chain, so I don't think you can remove it with the head in place, unless you break the chain, then you may be able to slide it out over the end of the chain.

The guide may also be wider at the bottom pin mount, so it is effectively trapped until the head comes off.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC