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[Markie]

Pulling a K series apart that i bought for £135...

Started dismanteling the head a few weeks ago after compression test showed 0 compression in chamber 2 and reduced in 4.

Immediately realised someone has made an arse of previous head removal and two head bolts are rounded...cant get anything on them...

Decided therefore that this would bea learning curve and id simply pull it apart bit by bit.

So far have cam sprockets, camshafts and hydraulic tappets removed with engine in situ...

Question - what else can i remove " for the sake of it" with head still in place ( albeit with 2 of 16 head bolts holding it on)

Am i right in thinking i cant remove valves at this stage?

[JamesV6CDX]

Pulling a K series apart that i bought for £135...

Started dismanteling the head a few weeks ago after compression test showed 0 compression in chamber 2 and reduced in 4.

Immediately realised someone has made an arse of previous head removal and two head bolts are rounded...cant get anything on them...

Decided therefore that this would bea learning curve and id simply pull it apart bit by bit.

So far have cam sprockets, camshafts and hydraulic tappets removed with engine in situ...

Question - what else can i remove " for the sake of it" with head still in place ( albeit with 2 of 16 head bolts holding it on)

Am i right in thinking i cant remove valves at this stage?

You can't remove valves with head on - as they wouldn't come up through their seat, and you wouldn't be able to compress the springs to remove the collets.

If it's a rover, what are the head bolts, Torx E12/14?

[Markie]

thought so James...

E10 on the bolts....

tried every combination of torx / metric socket etc i can the last two are mangled.....did eventually manage to get a metric hammered on but rounded eventually again

Cant even grip them and tighten them ( in an attempt to snap them )

[JamesV6CDX]

thought so James...

E10 on the bolts....

tried every combination of torx / metric socket etc i can the last two are mangled.....did eventually manage to get a metric hammered on but rounded eventually again

Cant even grip them and tighten them ( in an attempt to snap them )

PM me your address. If it gets desperate, I have some "magic" sockets that "cut" into the head of the bolt for a grip, they have NEVER failed yet (presuming you use the right sized one!).

When breaking my Elite, I didn't have a T50 for the cam sprocket bolts, so I removed them using the magic socket, they pulled off some extremely tight bolts, with COMPLETELY round heads

Trying to over tighten them in hope to snap them will give you HUGE troubles, possibly stripped thread in the block (remember how long those K series bolts are)... please don't do this!!

[Markie]

thought so James...

E10 on the bolts....

tried every combination of torx / metric socket etc i can the last two are mangled.....did eventually manage to get a metric hammered on but rounded eventually again

Cant even grip them and tighten them ( in an attempt to snap them )

PM me your address. If it gets desperate, I have some "magic" sockets that "cut" into the head of the bolt for a grip, they have NEVER failed yet (presuming you use the right sized one!).

When breaking my Elite, I didn't have a T50 for the cam sprocket bolts, so I removed them using the magic socket, they pulled off some extremely tight bolts, with COMPLETELY round heads

Trying to over tighten them in hope to snap them will give you HUGE troubles, possibly stripped thread in the block (remember how long those K series bolts are)... please don't do this!!

Good Call James.....i remembered my magic sockets....

Well more my special occasion Snap On`s,,,

Ive just leathered e8 on one, original size e10 not as stated by me above e12.

Then attaced a series of sockets and adaptors and my 2 foot breaker bar, slowley but surely i have the last two out..

So i now have..

Top off
16 shiney tappets removed from head
2 cam sprockets removed from head
2 camshafts removed from head

Ive also got a bottom end of same model car but different vehicle on an engine hoist at the back of the garage...

Now the fun starts  8-)

[JamesV6CDX]

Have you got a valve spring compressor with a long reach on it?

[Markie]

Have you got a valve spring compressor with a long reach on it?

errrr nope, did i say fun time....i meant shopping time  

[Marks DTM Calib]

Your next step should be to find out why the compression was low......its normaly a valve, sometimes a holed piston......its unlikely to be rings though.

[Markie]

Your next step should be to find out why the compression was low......its normaly a valve, sometimes a holed piston......its unlikely to be rings though.

Of Course  

When i established compression as 212 / 0 / 212/ 172 i knew the head wasnt re usable in its current form

I was originlly thinking valves so loking to remove them first for inspection ( when proper tool purchased...)

Will post some pictures when i am clean and allowed into house to fetch camera   laptop perched at back door on wireless and its as close as i am allowed to house....

Would be intrested to know from Mark and James v6 if anything untoward appears in the pictures, i cant immediatly see anything...

[JamesV6CDX]

Top end wise, It could only be, hole in a valve, or a valve not seating properly... possibly it's had (and not entirely survived) a cambelt failure?

[Markie]

Top end wise, It could only be, hole in a valve, or a valve not seating properly... possibly it's had (and not entirely survived) a cambelt failure?

intrestingly cambelt looked spot on - but cam locking tool would not fit between sprockets

Also intrestingly ( maybe lol) chamber 2 kaput, chamber 4 low on compression.

Chamber 4 exhaust manifold "port" is leaking engine oil and throttle body also has engine oil in it.

Fair to say the drive home in this car was not excellent. Clear even at that point it was on 3 cylinders. Shame as original owner had put new plugs, leads and dizzy on it to try and cure its problem  

[JamesV6CDX]

Hang on. Are you saying that, engine oil is coming up through the head, into the exhaust manifold ports? on just one cylinder?

Surely if that's the case, the only way this would happen is if the oil control ring is shagged on that piston?

I would though, expect steadily increasing compression (albeit it still low), instead of zero..

[Markie]

Hang on. Are you saying that, engine oil is coming up through the head, into the exhaust manifold ports? on just one cylinder?
Surely if that's the case, the only way this would happen is if the oil control ring is shagged on that piston?

I would though, expect steadily increasing compression (albeit it still low), instead of zero..

Yup, thats the case....was compresion tested several times and showed identical results...

piccies to follow in half an hour or so

[JamesV6CDX]

I'm not sure head pics will help if that's the case, it sounds more like piston trouble to me  

[Markie]

I'm not sure head pics will help if that's the case, it sounds more like piston trouble to me  

its possible ( looking again at the physical parts) that its had rocket cover leak form one side....could have possibly leaked over and around exhuast manifold....maybe even into it..