Knocking from engine

Bludge · Post by **Bludge** » Sun Nov 02, 2014 5:05 pm

Thebusofwoe wrote:Yes but don't forget, these are all alloy engines and transmit noise/sounds very easily. I think then that you would want to remove the rocker cover and check for any abnormalities regarding valve height ect. Defo knocks in time with rpm??

how do i go about checking valve heights? i have gained enough knowledge to feel comfortable bolting parts on and off but the engine internals remain a mystery to me!

the speed of the knock definitely changes in time with the rpm, and is constant at whatever rpm ypu have it at.
it almost sounds like something is knocking against the rocker cover.

i was going to pop it off and have a look, but bar there being a small animal trapped in there i wouldnt really know what to look for!

mercutio · Post by **mercutio** » Sun Nov 02, 2014 5:56 pm

get a engine stethoscope and use the probe to determine if it is top end or not?

Post by **Donald** » Sun Nov 02, 2014 7:40 pm

I have a stethoscope that appeared in my possession at Harvard Medical School.

Must be worth at least... 1 million dollars. LG discount of 50% if you're interested.

Bludge · Post by **Bludge** » Sun Nov 02, 2014 7:49 pm

If by stethoscope you mean screwdriver, i have already tired that and hae no idea what im listening for

Im gonna take it to my mate to see if he can diagnose it for me.

My questions are as follows:

1: Whats the worst that can happen if i continue to drive it in its current state? anything that wont be fixable by chucking the replacement engine in?

2: Who wants to come and help me swap engines when the time comes? beer and food will be provided. maybe strippers too. cheap ones though.

3: What should i do to the spare engine before it goes in the car? maintence, mods ect?

4: what are the winning numbers for the lottery this tuesday?

mercutio · Post by **mercutio** » Sun Nov 02, 2014 7:57 pm

if your putting an engine in you may as well change the cambelt waterpump and main crank seals/balance seal

Post by **Donald** » Sun Nov 02, 2014 8:04 pm

1. Engine will die.

2. Not if you're gonna be cheap.

3. Make sure it's not attached to another car.

4. My bets are: log(1), π, R, 6.62606957×10^−34, 9.81, Graham's number

Post by **Drax** » Sun Nov 02, 2014 10:49 pm

do the valve clearances - if that makes no difference then probably a spun bearing or something damaged/broke

Bludge · Post by **Bludge** » Sun Nov 02, 2014 11:54 pm

Gonna undertake the valve clearances sometime this week. one question though, i understand setting TDC for the number 1 cylinder with the arrows and marks, but how do you set the other cylinders?

Post by **Thebusofwoe** » Mon Nov 03, 2014 1:37 am

Every 1/4 turn on the cam shaft pulleys.

Bludge · Post by **Bludge** » Mon Nov 03, 2014 8:09 am

Excellent. gonna get some feeler guages today and get it done one evening this week. fingers crossed its makes an improvement.