Hey all, I have a pretty major problem I think. On my 89 na I'm getting a horrible loud ticking sounds coming from the front of the engine. it has been ticking for a few weeks now but was only ticking sometimes and wasnt too loud and there was no sign of loss of power or anything like that, but recently the ticking got really loud and is now basically ticking constantly and there is a major loss in power. the ticking increases as engine rpm increases. I removed the upper timing cover and had a look but couldn't see anything out of the ordinary, the ticking sounds like it is coming from the bottom end at the front. I also pulled a wire one by one checking the cylinders and the ticking continued thru all cylinders.. I am puzzled..any help would be greatly appreciated, thanks.
Loud Ticking noise from front of engine
- Thread starter Tjay
- Start date
slowpra na-t;1327329 said:
Check the timing belt, tensioner, crank gear, oil pump shaft gear and cam gears.
Do you have after market cam gears?
Is it a tick or knock? How many k's?
Cut your oil filter open, squeez some pleats out, if its gone as long as you say, you'll see some "glitter". If not, listen to jdub.
Recent BHG, or current?
Cut your oil filter open, squeez some pleats out, if its gone as long as you say, you'll see some "glitter". If not, listen to jdub.
Recent BHG, or current?
Reason I asked about the cam gears is that on some the adjustment screws will brush against the rear cover making a ticking sound.
Have you checked your timing lately? The loss of power in making is me think you jumped a tooth on your timing belt. If so, what I said earlier is a good possibility for one of those parts.
Have you checked your timing lately? The loss of power in making is me think you jumped a tooth on your timing belt. If so, what I said earlier is a good possibility for one of those parts.
there is a possibility of a BHG im not completly convinced yet, getting the gurgling sound but ive also had some issues with leaking coolant. im still thinkin its timing related. guess tommorow I will pull the bottom timing cover off to get a better idea of whats going on.
thanks.
car has 150,000km timing belt was done at 103,000km
its more of a metal clicking or tapping that increases as engine rpm increases
thanks.
car has 150,000km timing belt was done at 103,000km
its more of a metal clicking or tapping that increases as engine rpm increases
pulling the bottom cover off wont really tell you much at all in relation to your issue. Save yourself the hassle and block test the cooling system to be sure as well as verify mechanical timing is still lined up (cams and crank like Jdub mentioned). Check the Tq on the crank pulley and you might as well pull it off to make sure the keyway is still 100% (especially if its loose).
Things that would make pulling the lower cover useful:
- The crank timing gear has belt guides straked to it...these can come loose allowing the belt to move on the gear.
- The oil pump shaft has a collar securing it behind behind the drive gear. If the collar is loose or broken, it allows fore/aft movement of the shaft.
- The tensioner pulley bearing could be shot.
Checking valve timing (cams pointing at the top index and damper pointing at zero with engine at TDC) is a quick way to tell if the belt jumped a tooth. If the belt did jump, there is something wrong with the belt or one of the belt drive components.
- The crank timing gear has belt guides straked to it...these can come loose allowing the belt to move on the gear.
- The oil pump shaft has a collar securing it behind behind the drive gear. If the collar is loose or broken, it allows fore/aft movement of the shaft.
- The tensioner pulley bearing could be shot.
Checking valve timing (cams pointing at the top index and damper pointing at zero with engine at TDC) is a quick way to tell if the belt jumped a tooth. If the belt did jump, there is something wrong with the belt or one of the belt drive components.
From him saying ticking, because a knock is usually very pronounced, Im going to have to agree that it is very possibly the TB tensioner, Ive had a tensioner go bad on me before, (but I let it go till it seized up and broke the belt.... stupid me)
If you do get a tensioner.. order one from www.rockauto.com they have the KOYO brand which is the supplier for the OEM tensioner at half the cost.
If you do get a tensioner.. order one from www.rockauto.com they have the KOYO brand which is the supplier for the OEM tensioner at half the cost.
I know that you said lower front of the engine, but take off the oil cap on the valve cover when the engine is running. If the ticking gets louder, then it's most likely valve related.
(Reason I say this is because my valves tick, and the sound gets louder when I pull oil cap. The ticking also increases as engine rpm's increase.)
(Reason I say this is because my valves tick, and the sound gets louder when I pull oil cap. The ticking also increases as engine rpm's increase.)
ok well here's the whole story i guess.
bought the car drove it fine for about a month. it was leaking coolant so I took it apart, it was leaking on the temp sensor housing gasket to the block. replaced that all was well for about a week. then it starts overheating one day I pull over before the needle got past 75% its spewing coolant from the rad, so I replaced the rad and a few hoses and all is good, still getting a gurgling sound at startup but it wasnt overheating at all.
I could always hear the ticking sound but it was usually only from 2500-3500rpm but then recently it got really bad ticking all thru the rpm range and there is a significant loss in power..as in it takes my engine literally seconds longer to go rev up even in neutral.
so basically this is why it COULD have a bhg
-gurgling, coolant issues
-oil collecting in my catch can is milky like.
why I dont think it it
-oil in cap isnt milky, nor is the oil when I drained it.
-prior to the ticking sound the engine ran flawlessly even after almost overheating
-coolant isnt oily, and isnt spilling over or anything like that with the new rad
anways I need to get a few SST's from toyota i guess before I go any further.
bought the car drove it fine for about a month. it was leaking coolant so I took it apart, it was leaking on the temp sensor housing gasket to the block. replaced that all was well for about a week. then it starts overheating one day I pull over before the needle got past 75% its spewing coolant from the rad, so I replaced the rad and a few hoses and all is good, still getting a gurgling sound at startup but it wasnt overheating at all.
I could always hear the ticking sound but it was usually only from 2500-3500rpm but then recently it got really bad ticking all thru the rpm range and there is a significant loss in power..as in it takes my engine literally seconds longer to go rev up even in neutral.
so basically this is why it COULD have a bhg
-gurgling, coolant issues
-oil collecting in my catch can is milky like.
why I dont think it it
-oil in cap isnt milky, nor is the oil when I drained it.
-prior to the ticking sound the engine ran flawlessly even after almost overheating
-coolant isnt oily, and isnt spilling over or anything like that with the new rad
anways I need to get a few SST's from toyota i guess before I go any further.