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Car Forum / Ford / Ford Falcon / May 2005EA FALCON, tapping noise and vibration
I posted this to aus.cars but then found this group, so here's my problem. I have an Ea Falcon the 3.9 litre engine. It has quite a loud tapping noise that taps in time with the revs. It's quite loud and also get a strong vibration through the car. Oil is fine, but it often use to do this when starting the car after it had been sitting for a while, only not this loud and it would soon disappear. Sometimes a rattling noise can also be heard, but it's hard to make it rattle, just seems to come and go. for example motor was rattling, I hop out of the car to look at engine, and rattle stops. Anyway I've got a feeling it's got something to do with valves or valve rods. I don't know anything about engines, but if I were to go through pulling out the HT leads to each of the spark plugs one at a time, would it be possible to find out which cylinder has the problem (if it is a valve problem) . I was hoping when I pulled the spark plug lead to the bad cylynder the noise would stop and I would have identified the problem Thanks, bye On eof the probs i found with the EA was the tappets, they become clogged or blocked and can cause the clicking noise, remove and clean mate, mine was clogged so badly. Peter >I posted this to aus.cars but then found this group, so here's my > problem. [quoted text clipped - 21 lines] > > Thanks, bye >On eof the probs i found with the EA was the tappets, they become clogged or >blocked and can cause the clicking noise, remove and clean mate, mine was >clogged so badly. >Peter Is that something someone that doesn't know anything about cars can do? Like if I bought a manual for it from a shop, any special tools?. Thing is although the tapping has been around for a long time, and would go away after a minute or so after engine start there was never the strong vibration nor the rattle in the engine, and it's now loud and doesn't go away. So I have a feeling it must be something more than clogged tappets. The vibration and rattling is what worrys me. mmmm engine knocking and tapping sounds. Sounds like low oil pressure... >I posted this to aus.cars but then found this group, so here's my > problem. [quoted text clipped - 21 lines] > > Thanks, bye > mmmm engine knocking and tapping sounds. Sounds like low oil pressure... Not likely. Low OP problems present once the engine has got up to temperature (and the engine's running clearances: ie rod-bearings for example have increased) they then stay while the engine is hot and get louder under load. His trouble is worn or dirty hydraulic lifters. This is a common prob in older Falcon OHC engines (EA on) as it was with the preceding pushrod donks. He can just leave it, altho eventually in 50,000 ks or so they;ll get unbearable, or replace them. As the engine is overhead cam, the job should not be that difficult. Remove cam, pull out lifters, throw in garbage, insert new ones. Unless you can primes the new-ones with oil,...you let the engine idle till all the new lifters are full of oil,..they'll clack for a while, while this is occuring. Jason > His trouble is worn or dirty hydraulic lifters. This is a common prob in > older Falcon OHC engines (EA on) as it was with the preceding pushrod > donks. I have this issue in an EL falcon. Any ideas what the replacement cost should be around if I get it done at my local mechanic? I don't wanna get ripped off :) The car is still behaving quite okay, but the woodpecker is starting to drive me crazy... Jason. >>His trouble is worn or dirty hydraulic lifters. This is a common prob in >>older Falcon OHC engines (EA on) as it was with the preceding pushrod [quoted text clipped - 8 lines] > > Jason. the lash adjuster run $17.00 each retail . just go some good gear off a good motor and do it your self ... (wreckers) > the lash adjuster run $17.00 each retail . > just go some good gear off a good motor and do it your self ... > (wreckers) Yeah, that's exactly what he needs to do: Swap a set of second hand ones for *another* set of second hand ones... -- Regards, Noddy. > > His trouble is worn or dirty hydraulic lifters. This is a common prob in > > older Falcon OHC engines (EA on) as it was with the preceding pushrod [quoted text clipped - 6 lines] > The car is still behaving quite okay, but the woodpecker is starting to > drive me crazy... An estimation only,...Noddy or some of the mechanics in aus.cars would be able to give you a better idea. I'd budget for $500 if the mechy is using non-genuine parts. Jason >>>His trouble is worn or dirty hydraulic lifters. This is a common prob in >>>older Falcon OHC engines (EA on) as it was with the preceding pushrod [quoted text clipped - 13 lines] > > Jason very much depends if the cam is damaged , > very much depends if the cam is damaged , They're not usually, as the roller tip of the rocker keeps them pretty clean. Noisy lifters/lash adjusters is a common problem with OHC Falcon engines, and a lot of it can be eliminated by using a good quality oil. I've always had excellent results with Penrite HPR-15, and have seen it quiet noisy engines almost immediately. -- Regards, Noddy. Thanks for the tip on the oil Noddy, I'll give that a shot. I'm actually selling the vehicle shortly (EL Ghia) as I have purchased something else (BAMK2 XR6T) so I'm not planning to fix the lifter noise anymore. I wasn't happy with the trade-in offer so I've kept the car and have sold it to a friend for the same amount as the trade-in - would rather he gets a bargain than give it away to a dealer. The person that is buying the car is well aware of the lifter 'issue' and it doesn't bother him, so that's good. It's not terribly loud but I don't like things that aren't right so I had planned to fix it, dunno if he will bother. Another question - don't suppose you happen to know how difficult it is to replace the things that keep the doors open? Currently when I park on an uphill angle and open the doors, they don't stay open anymore. I think the hinges are fine, there is another part that bolts to the door and the car that looks like it might be relatively easy to replace (hoping it's a simple matter of undoing the four bolts, removing and replacing). Confirmation of this would be great (as well as what they are actually called if anyone can help, rough price as well if anyone happens to know). The back doors are fine, but both front doors no longer stay open. Cheers, Jason. >> very much depends if the cam is damaged , > [quoted text clipped - 9 lines] > Regards, > Noddy. yep they are not to exspensive ($15 to $20) and are very easy to replace regards col > Thanks for the tip on the oil Noddy, I'll give that a shot. I'm actually > selling the vehicle shortly (EL Ghia) as I have purchased something else [quoted text clipped - 34 lines] >> Regards, >> Noddy. > The back doors are fine, but both front doors no longer stay open. Replacing the "Check straps" (as they're known) isn't a difficult task, but finding good used ones is. Rather than stuff around with second hand units, you'd be better off with new ones. I don't think they're all that expensive. -- Regards, Noddy. > Replacing the "Check straps" (as they're known) isn't a difficult task, > but finding good used ones is. Rather than stuff around with second hand > units, you'd be better off with new ones. Cool, now I know what to ask for, I'll see what they're worth and let the new owner know :) Thanks Noddy, Jason. > > Replacing the "Check straps" (as they're known) isn't a > difficult task, [quoted text clipped - 9 lines] > > Jason. sticky lifters are common in ford ohc straight 6 engines. most of it is due to dirt biuldups in lifters causing them to stick. with the ea falcons, you can purchase new retainers for bugger all from places like sprint auto or repco. all you need to do is pull out the lifters form the rockers, which is a simple procedure thanks to the simplicity of fords ohc engines. pull them appart, give them a thorough clean, reasemble them and replace them be careful not to drop them down oil galleries, coz it’s no fun trying to get them out. stuff the with rags or something to prevent them from falling. > mmmm engine knocking and tapping sounds. Sounds like low oil pressure... The way to test for oil pressure problems is to load the motor up (hold brake on while in gear and depress the throttle) if the moise gets louder, its a bearing or piston,..if not its a lifter or possibly piston slap. Jason |
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