On a past post , you asked if there were things to do before putting the head back on.

So, I asked if the #1 piston was at top of block when crank pointer was at TDC..Was it?

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A Dalton

tomorrow is another day....I'll go through the valves again

yes the piston was at the top.
after I freaked out on the zero Compression i put a pencil in each cylinder and they are all moving and there is enough compression to hear noise but it does not register on my gauge so it has to something like the valves right? there has to be too much gap and that is were my compression is going or visa versa right? i would see fluid leaking or something wouldnt i?
I cant thank you enough for the time you have giving me.
If your ever in Diego and need anything to do with the Surfing industry just ask and I will send it your way!!! no problem...
Aloha Johnny

If you feel compression , but the gauge does not register, I would suspect the gauge first.

But , if the gauge is OK and you know for a fact that you have no comp [which is suspect right from the start] . do this:

TDC @ crank , with the rotor facing #1, and the cam aligned ...

Look at the cam lobes on #1 cylinder..are they at 10 and 2 o'clock??
That is the question....YES/NO.
If yes, then can you slip your valve adjusting feeler in there where you adjusted the valves ?? ..if NO, they are too tight and the valves are not Closing..if they are a little loose , that is Ok.


Also, while you have all that lined up, stick something in to feel if that piston is up TOP..if NO..post NO.

Did you ever take the cam sproket off ?
Didyou ever take the balancer off?
Please answer ALL questions so I know where you stand.

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A Dalton

cam lobes at 10 and 2 (yes)
crank at TDC (yes)
rotor at # 1 cylinder (yes)
gap on #1 exhaust 0.18mm (yes)
no gap on intake (no) will adjust to 0.08mm
piston is at top (yes)


and yes i took of the cam sprocket
no i did not remove the balancer

i checked my gauge and its fine

Very good..

Open that intake lash up so there is .004 and try the compession test again.

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A Dalton

well after struggling with valve clearance. Its very hard to adjust with fuel injections pipes mounted.
I am still at ZERO and i am dumbfounded.
the only thing im thankful for is 1 your help and 2 I have the original head that tested 160 pounds 2 thru 6 I will take it to another machine shop and have a valve job done on it and go from there I guess,, I dont know what else I could have done or what else i can do

Well , are you familiar with a leak down test procedure?

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A Dalton

yes and I am going to borrow that from a friend...thanks again and I will let you know how it goes

OK

That will tell you what's up ...
..and try your comp gauge on another car..

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A Dalton

5. had the extra head machined and checked.( new valve seats etc.)

Hmmm... I wonder if the head was planed, and how much.

This is an Interference engine, with respect to the valve train.

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1970 280S M130 engine- good runner
1971 250 M130 engine- #2 rod bearing, gone
1971 280SE (blown engine,parts car)
1977 German 280S W116-only 33 years old

It is a little odd to me that you are seeing zero compression. When you stated number one had both cam lobes pointing upward say at the 10 and two oclock position. Plus the pointer on the balancer at zero.

If the cam mark was lined up as well and it was by the position of the two cam lobes on number one.It may not have run but should have had compression. So first of all verify the compression gauge is working on another car so you do not chase your tail.

Since you might be fairly new to mechanical adjusted valves you are setting your valve clearances on the bottom of the cam lobe area? Again for many reasons it might not start but you should have some compression from your last description.

I cannot see an automotive machine shop messing up a valve job this bad. But do not live in your area. Some compressed air into the number one cylinder with the valves closed might tell where it is going as something is not sealing. I now doubt your cam crank refferance is off. You gotta verify that compression gauge is functional still though.

Did you read the post on Leak Down test and his response??

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A Dalton