Topic: Oil pressure or lack of it to rockers

[Hop on a Honda]

I have a weird problem
My engine starts first go It seems sweet and has bulk power But as soon as it warms up in say two miles it develops a "Nick' 'Nick" sound which appears to come from the rocker cover some where.
I have checked the tapets out. all seem to be OK .002" in & .003" out
There is oil spray from the left hand side #1 & 2rockers but there seems to be very little on the #3 & 4. Is this a distinct lack of oil on the RH side of the OHCam gear?
I have just adjusted the Cam Chain tension adjuster
Worried!!
Dave Australia.

[750goes]

Dave,

have you checked when the bike is warmed up - I would think there should be roughly the same amount of oil splashing about on both sides??

what was the result of your locked engine last week - might this have something to do with it??? lack of oil, heats up camshaft, camshaft gets noisy??? tick tick tick ?

I'm concerned ??   

[Hop on a Honda]

I'm concerned too I have NO idea why the engine locked up last week at all.
Big question mark.
There is ample oil and the oil pressure has to be a question I shall measure the presure on Wednesday morning  sounds ODD.
I will be checking the distance of the Cam Chain Adjuster too
 IE The depth of the actuating arm off the CCA.Mine is 14MM inside the shaft
Whats yours.
Cheers
Dave

[ktp1598]

I have heard of temporary seizing due to overheating. Don't know why it would overheat though.

[Hop on a Honda]

Engine is almost out
I will know tomorrow what the problem is.
it looks like the RH oil gallery to the Camshaft etc is clogged But you ask?
How>?
Dave $$$$

[Hop on a Honda]

I was right The #4 cam post was running bone dry and cooked the cam bearings on #4 post
I have NO idea what has caused this lack of lubrication to the cam post.
Any way the head is off and I found that there were a lot of incorrect installations of valve springs.
half were upside down.
Many $$ later more
Dave

[upperlake04]

good thing you caught it before it got any worse    had the same problem - inspection of the 2 little aluminum oil jets set into the head between 2 and 3 showed they were nearly clogged with small hard chunks of  amber coloured crap.  There were a few more pieces laying on top of the oil pump filter screen. No idea what the stuff was..

[Jerry Rxman Griffin aka MuthaF'er]

Dave,

I believe at this point, with what you've found pertaining to the valve springs, I would be tempted to take the whole engine apart. It sounds like someone didn't really know what they were doing. Wouldn't you have more peace of mind knowing it has been put back together right and at little more expense than what it's going to take? Besides it never hurts to have a fresh engine.

[nickjtc]

Dave,
I believe at this point, with what you've found pertaining to the valve springs, I would be tempted to take the whole engine apart. It sounds like someone didn't really know what they were doing. Wouldn't you have more peace of mind knowing it has been put back together right and at little more expense than what it's going to take? Besides it never hurts to have a fresh engine.

Or at the very least drop the sump to see what gems there may be lurking down there.

[nickjtc]

I have a weird problem
My engine starts first go It seems sweet and has bulk power But as soon as it warms up in say two miles it develops a "Nick' 'Nick" sound which appears to come from the rocker cover some where.

And I thought my sound was unique to me!

[upperlake04]

Im wondering if that "amber colored crap" may have been gasket maker or some other kind of sealer?

could very well be. Some time inspecting the various oil passageways through the aluminum towers was informative. I made some small tapered hardwood plugs to alternately plug differrent holes and used wd40 and an air hose to learn how the oil travelled from the oil jets through to the different orfices. Once I was convinced all were clear, I reassembled, and then at start up, checked visually through the tappet adjustment covers for oil splash.  Alls well now    
 
HonaH - thats the beauty of this hobby - no black magic to decipher in the internal workings, everything  works according to logic. Direct cause and effect. It will be so simple when you find the answer to the problem   All the best

quote
I have a weird problem
My engine starts first go It seems sweet and has bulk power But as soon as it warms up in say two miles it develops a "Nick' 'Nick" sound which appears to come from the rocker cover some where.

And I thought my sound was unique to me

  Nick I think you have an unnatural attraction to your bike. Are you sure you don't want to get that studly 650 for Sophie?

[nickjtc]

Nick I think you have an unnatural attraction to your bike. Are you sure you don't want to get that studly 650 for Sophie?

She would take one look, mutter something like "uncouth riff raff" and slope off to the other side of the garage.

[mcpuffett]

so dave how you getting on with your repairs? have you decided to just do a top end rebuild or are you going for the full strip down?

i have found my self in the same situation as you if you read my post (engine nipped up on me)you will see what i mean, ,      mick.

[Hop on a Honda]

good thing you caught it before it got any worse    had the same problem - inspection of the 2 little aluminum oil jets set into the head between 2 and 3 showed they were nearly clogged with small hard chunks of  amber coloured crap.  There were a few more pieces laying on top of the oil pump filter screen. No idea what the stuff was..

I am of the opinion of that that it was/ is from oil filter cartridge or clutch plate fibre
it was in the oil difuser but it certainly was in the #4 area.
The oil pump screen is next to be examined
Dave

[Hop on a Honda]

PS The whole engine will be certainly stripped and washed .Oil galleries will also be thouroughly cleaned and tested before reassembly
I hopefully will be the owner of a almost great engine. With fresh paint too.

Dave

[bryanj]

Clutch plate crap would have been stopped by the filter unless that went on Bypass