Volvo P1800 B18 metallic tick noise

CLIVERALLY · Oct 3rd, 2017, 15:40

OK, re my previous post I have had chance to have a good butchers at my car to find the source of an odd tick / ping sound. I have removed the rocker cover and run the car.
The noise which is not on all the time seems to be coning from No 5 tappet , pushrod side. Could it be a sticking follower ?

CLIVERALLY · Oct 8th, 2017, 20:51

Uploaded video on You Tube
P1800 tick
Any ideas chaps

amazon69 · Oct 8th, 2017, 23:06

It doesn't sound regular or rhythmical. Can you put a stethoscope type thing/metal pole etc against various ares to see if that helps pinpoint the noise? (Be careful). What was the last thing you did before it started making the noise?

CLIVERALLY · Oct 9th, 2017, 07:42

Hi, sure
It seems to be coming from the No 5 tappet but at pushrod side
I had just completed a 350 mile trip when I first heard it. It does not affect performance and checking the timing gear area, the dynamo and water pump all of which I have drawn a blank...no sound.
Initially I thought it was coming from the inlet manifold.
Going to do a compression test and send a fibrescope into the cylinders.
As you say it seems not in time with revolutions of the engine...in truth I am lost.
My thought was a lazy pushrod lifter. ?

Derek UK · Oct 9th, 2017, 13:24

Although it can be messy, if you run the engine with the valve cover off you can usually feel the odd one out if you put your thumb on the rockers. Might just change the sound too. Could be a sticky valve rather than a lifter. Try oiling the rocker gear, with a oil can of engine oil. Rocker gear can get gummed up and can benefit from a strip down and clean. Diesel is a good cleaner.

Triple-S · Oct 9th, 2017, 14:38

Clive - not wishing to perhaps spoil your day but we had similar on the Amazon a few years ago and despite examination of the timing gears etc when we got home, had to take the head off.
Bits of broken piston ring down No 1, therefore that piston was damaged with wreckage bouncing about. Also No 4 piston had a hole in it - all probably caused by persistant pinking in the past. Result - engine swap!
Car still drove fine though - only Volvo!

P

CLIVERALLY · Oct 9th, 2017, 18:52

Thanks for all the help lads. Will be attacking it on Thursday. Hope to hell it not piston related.
Will keep you all updated.. Wish me luck

amazon69 · Oct 9th, 2017, 20:52

Good luck. But I don't think you'll really need it..I'm betting on something much simpler. Only problem is, I don't know what it is.

CLIVERALLY · Oct 12th, 2017, 12:58

OK. After getting round to looking at it.
It is a sticking cam follower/ push rod lifter.
Going to tackle it with Forte flush down the pushrod hole and work the engine over manually until it frees..if it don't then head off.
My issue is that the engine was rebuilt only a few years ago and it has always had quality oil . I did have to put in some Comma Classic as a stop gap. I will be going back to Valvoline 20/50

mocambique-amazone · Oct 12th, 2017, 14:36

Hi Clive. My opinion? It is a sticking valve guide. Some kind of guides "grow" by time, the tolerance between valve stem and guide will get less than it should be. Not the first car engine I noticed this. Are you shute about the follower? Did you turn the engine without rocker arms by hand and one follower doesn't come down by gravity?
Good luck, regards, Kay

Oct 3rd, 2017, 15:40	#1
CLIVERALLY Master Member Last Online: Apr 18th, 2024 23:55 Join Date: May 2010 Location: wetherby	Volvo P1800 B18 metallic tick noise OK, re my previous post I have had chance to have a good butchers at my car to find the source of an odd tick / ping sound. I have removed the rocker cover and run the car. The noise which is not on all the time seems to be coning from No 5 tappet , pushrod side. Could it be a sticking follower ? __________________ Clive "Lets turn up the juice and see what shakes loose"

Oct 8th, 2017, 20:51	#2
CLIVERALLY Master Member Last Online: Apr 18th, 2024 23:55 Join Date: May 2010 Location: wetherby	Uploaded video on You Tube P1800 tick Any ideas chaps __________________ Clive "Lets turn up the juice and see what shakes loose"

Oct 8th, 2017, 23:06	#3
amazon69 Premier Member Last Online: Apr 22nd, 2024 19:39 Join Date: Jan 2006 Location: Falmouth	It doesn't sound regular or rhythmical. Can you put a stethoscope type thing/metal pole etc against various ares to see if that helps pinpoint the noise? (Be careful). What was the last thing you did before it started making the noise? __________________ Falmouth, Cornwall. 1970 California white 131.

Oct 9th, 2017, 07:42	#4
CLIVERALLY Master Member Last Online: Apr 18th, 2024 23:55 Join Date: May 2010 Location: wetherby	Hi, sure It seems to be coming from the No 5 tappet but at pushrod side I had just completed a 350 mile trip when I first heard it. It does not affect performance and checking the timing gear area, the dynamo and water pump all of which I have drawn a blank...no sound. Initially I thought it was coming from the inlet manifold. Going to do a compression test and send a fibrescope into the cylinders. As you say it seems not in time with revolutions of the engine...in truth I am lost. My thought was a lazy pushrod lifter. ? __________________ Clive "Lets turn up the juice and see what shakes loose"

Oct 9th, 2017, 18:52	#7
CLIVERALLY Master Member Last Online: Apr 18th, 2024 23:55 Join Date: May 2010 Location: wetherby	Thanks for all the help lads. Will be attacking it on Thursday. Hope to hell it not piston related. Will keep you all updated.. Wish me luck __________________ Clive "Lets turn up the juice and see what shakes loose"

Oct 9th, 2017, 13:24	#5
Derek UK VOC Member Last Online: Yesterday 14:24 Join Date: Jul 2006 Location: Chatham	Although it can be messy, if you run the engine with the valve cover off you can usually feel the odd one out if you put your thumb on the rockers. Might just change the sound too. Could be a sticky valve rather than a lifter. Try oiling the rocker gear, with a oil can of engine oil. Rocker gear can get gummed up and can benefit from a strip down and clean. Diesel is a good cleaner.

Oct 9th, 2017, 14:38	#6
Triple-S How Old? Last Online: May 31st, 2021 12:28 Join Date: Oct 2006 Location: redhill	Clive - not wishing to perhaps spoil your day but we had similar on the Amazon a few years ago and despite examination of the timing gears etc when we got home, had to take the head off. Bits of broken piston ring down No 1, therefore that piston was damaged with wreckage bouncing about. Also No 4 piston had a hole in it - all probably caused by persistant pinking in the past. Result - engine swap! Car still drove fine though - only Volvo! P

Oct 9th, 2017, 20:52	#8
amazon69 Premier Member Last Online: Apr 22nd, 2024 19:39 Join Date: Jan 2006 Location: Falmouth	Good luck. But I don't think you'll really need it..I'm betting on something much simpler. Only problem is, I don't know what it is. __________________ Falmouth, Cornwall. 1970 California white 131.

Oct 12th, 2017, 12:58	#9
CLIVERALLY Master Member Last Online: Apr 18th, 2024 23:55 Join Date: May 2010 Location: wetherby	OK. After getting round to looking at it. It is a sticking cam follower/ push rod lifter. Going to tackle it with Forte flush down the pushrod hole and work the engine over manually until it frees..if it don't then head off. My issue is that the engine was rebuilt only a few years ago and it has always had quality oil . I did have to put in some Comma Classic as a stop gap. I will be going back to Valvoline 20/50 __________________ Clive "Lets turn up the juice and see what shakes loose"

Oct 12th, 2017, 14:36	#10
mocambique-amazone Master Member Last Online: Jan 24th, 2022 17:08 Join Date: Nov 2008 Location: small village in the north of Germany	Hi Clive. My opinion? It is a sticking valve guide. Some kind of guides "grow" by time, the tolerance between valve stem and guide will get less than it should be. Not the first car engine I noticed this. Are you shute about the follower? Did you turn the engine without rocker arms by hand and one follower doesn't come down by gravity? Good luck, regards, Kay

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