[madmanmerc]

i just got my cylinder head rebuilt. put it back on today. i am a novice mechanic, so i tried to do everything right. after installing the head and everything else the car wont start. the motor turns, but it sounds like there is no compression at all. does anyone have any ideas. i am really stuck and any advice would be greatly appreciated. thank you

 

[madmanmerc]

anyone please

 

[Steve the Fly]

Is the crank sensor working they sometimes go ga ga! £96 in UK. This is assuming the head is fixed of course. You must have some mechanical knowledge or you wouldn't have attempted such a feat! All the best with the DIY. Not sure if your year has crank sensor though?? Is there a spark? Start at plugs and work your way back. I always start with the cheapest to fix first, if the compression is down there is a possibility the cam/crank timing is out so exhaust is opening too early and no fuel is drawn through! Borrow a compression tester??

lol Steve (uk)

 

[CalifSLK]

i just got my cylinder head rebuilt. put it back on today. i am a novice mechanic, so i tried to do everything right. after installing the head and everything else the car wont start. the motor turns, but it sounds like there is no compression at all. does anyone have any ideas. i am really stuck and any advice would be greatly appreciated. thank you

Which car is it and which engine? This had happened to me several times assembling engines and the problem ranged from timing belt and distributor. But to get the experts on each engine to speak, specifiy which car and engine you are working on.

 

[madmanmerc]

its my 280c. but the motor was changed a few years back to a 250c motor (130 932) motor. before i took off the head i marked the camshaft so i can put it excactly where it was before i took it off. so i didnt play with brining anything to tdc. could that be the prob. thank you very much and please help

 

[americanflyer302]

Try posting your question over at MercedesShop - Mercedes Benz Parts and Technical Information

you will get 10 times the answers as you will on this forum.

 

[Jon L]

I have responded to this thread where it is essentially duplicated in the general discussion forum.