Engine tapping when hot. - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-17-2006, 04:36   #1 (permalink)
Registered User
 
Join Date: Feb 2006
Posts: 6
confused Engine tapping when hot.

Hi Guys, I have a au fairlane 4.0l vct + tickford, 120,000ks. Bought 2nd hand 5000k ago. I have what sounded like a stuck lifter noise and replaced all lifters. noise remains!! only hearing it at normal temp. never when cold or on startup like lifters or bigends. Particularly loud around flexplate/ bell housing area, t/conv bolts are tight. Ford dealer says "they all make that noise, just yours is a bit worse" load of bull I say, there is a problem but they want a blank cheque to look for the noise. Please help if you have any ideas I would be very gratefull.
Davsmit.
davsmit is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-18-2006, 05:56   #2 (permalink)
Registered User
 
jas24zzk's Avatar
 
Join Date: Jul 2005
Location: Wandin, Vic
Age: 41
Posts: 827
Re: Engine tapping when hot.

Davs,
not sure on such a late model. But on the earlier ones, its a sign of poor servicing, and/or poor lubricant quality.
On the earlier models i have found the oil galleries on th eoverhead gear block easilyl with crap oil, and hence need removing and cleaning to provide proper oil flow.

Can't suggest a start point as i don't know your expertise level.

Jas
jas24zzk is offline   Reply With Quote
Old 02-19-2006, 16:12   #3 (permalink)
Registered User
 
Join Date: Feb 2006
Posts: 6
Re: Engine tapping when hot.

Thanks Jas,
Ive been thinking same thing. I am a diesel fitter since 1979, and am struggling with this one now for 5 months. I had a set of lifters fitted when I first bought it as that was the obvious possibility. Mechanic told me the donk was spotless inside and assured me he cleaned oil galleries and found nothing. The car has been serviced exclusively by Frost Ford in Darwin since new, and always on time. (I rang the original & only owner prior to purchase, he adored the car and regretted its sale forced apon him because it had lost its business tax advantages, my gain though).
Having said that, I tend to agree with you on a blocked oil supply to one lifter. Is it likely to be evident if I run it w/out valve cover and see oil discharge from rockers?? Never been inside one of these engines but this would be my course of action. Tried engine on 10w30, 15w40 and now 20w50 oil, no difference, worse now if anything.
Your thoughts??
Rgds Davs.
davsmit is offline   Reply With Quote
Old 02-20-2006, 02:49   #4 (permalink)
Registered User
 
dodge's Avatar
 
Join Date: Jun 2004
Location: brisvages where else
Age: 41
Posts: 995
Re: Engine tapping when hot.

also check valve clearance when hot ,
__________________
dodge is offline   Reply With Quote
Old 02-20-2006, 03:28   #5 (permalink)
NB & NCII V8 Fairlanes
 
Join Date: Feb 2001
Location: Bibra Lake Western Australia
Posts: 2,840
Re: Engine tapping when hot.

It's a long shot but it could also be a loose control valve (the ones that vary the runner length) butterfly in the intake runner flapping (held shut when cold). Remove the vacuum hose from the diaphragm (engine off) and see if you can get the same noise if you manually lift the control rod and turn the lever back and forth to open and close the 6 valves.
__________________
Regards Blue
Aussiblue is offline   Reply With Quote
Old 02-20-2006, 06:09   #6 (permalink)
Registered User
 
jas24zzk's Avatar
 
Join Date: Jul 2005
Location: Wandin, Vic
Age: 41
Posts: 827
Re: Engine tapping when hot.

Davs,
not sure on the VCT's (am a panel beater, not mechanic (but nothing scares me)
On the EA-ED's the lash adjusters are non adjustable, and i would dare say the VCT ones are the same. They can be tested, but finding someone outside ford with the gear could be hard. When i rebuilt the motor in my EB i looked at replacing these as a matter of course. I bauted at $28 to me for each....there are 24 of em. I was lucky being in trade that i was able to get them tested, and only replaced two.
I did however replace the oil pump in the process.

Since the rebuild, i have stuck with mobil 1 oil...sparodically (too busy to service it) and the falcon tap hasn't resurfaced.

Cheers
Jas
jas24zzk is offline   Reply With Quote
Old 02-20-2006, 06:10   #7 (permalink)
Registered User
 
jas24zzk's Avatar
 
Join Date: Jul 2005
Location: Wandin, Vic
Age: 41
Posts: 827
Re: Engine tapping when hot.

hmmm must be pissed...can't count....12 lash adjusters!

Jas
jas24zzk is offline   Reply With Quote
Old 02-21-2006, 00:26   #8 (permalink)
Registered User
 
Join Date: Feb 2006
Posts: 6
Re: Engine tapping when hot.

Thanks Guys,
Further investigation has narrowed it down to bottom end/flywheel front of trans/t.conv area. Using stethascope against trans front & sump rear seems loudest. top end sounds like a different car by comparison. Being OHC I doubt lash adjusters as this would surely eminate from above.
- No noise on cold start-up,
- No noise on start-up after oil & filter change ie 0 oil press.
- Noise disappears above 1800 rpm
- Noise is same in neutral, rev. drive, and T/C stall
- Noise is relative to engine RPM
- Oil pressure is above gage centrepoint at idle and rises only slightly at revs.
- Ford techs in Darwin and Melb. are trying to tell me all au have same noise. (no way)
- Has anyone had a recall/warranty like this, maybe a coverup by the dealer I bought from??
A carton of best beer to he who can solve this one...
Rgds. Davs
davsmit is offline   Reply With Quote
Old 02-21-2006, 15:04   #9 (permalink)
Registered User
 
xpc66's Avatar
 
Join Date: Sep 2004
Location: Brisbane
Posts: 155
Re: Engine tapping when hot.

Well I'll ask the basics:

does noise go away on the uphill and come back on the downhill?
have you carried out a compression test?
have you carried out a vacuum diagnostic test (eg sticky valve)?
is there a clutch thrust bearing that could be playing up?
are the engine and tranny mounts in good condition?
does the spark plug show over fueling?
__________________
Go the Brisbane Lions
xpc66 is offline   Reply With Quote
Old 02-23-2006, 02:11   #10 (permalink)
Registered User
 
Join Date: Feb 2006
Posts: 6
Re: Engine tapping when hot.

All the above been done, all good, engine is running perfect, just a blessed knock in it. I suspect the noise is CAUSED by oil pressure, rather than as a result of lack of oil.Sounds a bit like clapping with wet hands (if that helps) seems worse since changing to 20w50 last week, next move is to empty filter when hot (& noisy) and restart donk to see if noise is delayed while pressure rises.
Stay Tuned!!!
davsmit.
davsmit is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 02:03.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.