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Discussion Starter · #1 ·
I started doin a rebuild on 1995 300ex Have everything tore down went to replace rocker arms have no idea how to get the rocker arms out any help would be great Thanks
 

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Welcome to the forums.

The diagram below shows how the dowel pin removal tool works.

 

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Welcome to the forums.Helmut we are very lucky to have you to help out.
 

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Thanks. I try to help out where I can.
 

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But if you dont have the special tools to get the pins out. Put a metal plate with a hole in it over the pin and put the part of the pin sticking out in a vice and put a chizzle between the metal plate and the vice and wedge it out. Thats how i did it and it worked on every one i pulled out.
 

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Yep no prob. Those pins can be a pain but try my mothod before you go out and buy the tool. Its expensive. No need to waste money that you could be spending on making it go fast! LOL



P.S. I just did a full rebuild myself cuz my oil pump went bad and it killed my rod bearings so if you run into any more trouble feel free to PM me and ill help you the best i can. I had mine down to spliting the cases and replacing the crank but dont ask me about the gears that way to complicated i left them in and i suggest you do the same.
 

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Discussion Starter · #11 ·
Well got the old rocker arms kinda puzzled by something my rocker arm shafts are different sizes 1's a little shorter than the other :unsure:
 

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Well got the old rocker arms kinda puzzled by something my rocker arm shafts are different sizes 1's a little shorter than the other :unsure:
compare the new ones side by side to the old ones..if they are the same, then the new ones aren't going all the way in..either that..or you just got the wrong ones ??.
 

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Discussion Starter · #13 ·
Well i have it all back together just getting ready to put Timing chain Tensioner back on and was wondering if there is anything particular i have to do to get it on anyone can help i appreciate it Thanks
 

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Well i have it all back together just getting ready to put Timing chain Tensioner back on and was wondering if there is anything particular i have to do to get it on anyone can help i appreciate it Thanks
Take the bolt out of the end of the tensioner. Take a tiny flat screwdriver and stick back in the hole and turn it clockwise. This will retract the arm on the tensioner. Hold it in this position until you get the tensioner bolted on. Once you get it bolted on, release the screwdriver and the arm will automatically extend and tension the timing chain. If you don't keep the arm retracted until it's bolted on, it will put too much tension on the timing chain.

BTW, don't forget to put your gasket on the tensioner. After you get the tensioner in, don't forget to recheck your timing marks to make sure it's still in time.
 

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Discussion Starter · #15 ·
I'am just dumb founded my 300ex won;t start, i have spark getting gas to the carb but wondering if i have the Valves adjusted wrong I have my TDC i thought and T mark lined up, Have my rocker arms where there supposed to be sounds like it has compression but i have no way to do an actual compression test and ideas on what i could be doin wrong would greatly appreciated Thanks
 

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When you lined the T mark up, did you put the lobes on the cam facing down?
 

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Discussion Starter · #17 ·
Ahhh crap i can't remember now only thing i can remember from putting cam in, is i lined those 2 lines up on each side parallel from each other yea i messed that up back to the garage for me those lines should be up and down and i thought i was doin good (Thanks Helmut)
 

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Ahhh crap i can't remember now only thing i can remember from putting cam in, is i lined those 2 lines up on each side parallel from each other yea i messed that up back to the garage for me those lines should be up and down and i thought i was doin good (Thanks Helmut)
No, the lines should be parallel with the head, but the cam lobes should be facing down. When you unbolt the cam gear from the cam, you can bolt the cam gear back on either way, with the lobes up or down. Make sure the cam lobes are facing down, then bolt the cam gear on with the lines parallel with the head and the timing mark on the cam gear at the top.
 

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