-
23rd October 2017, 03:32 AM
#11
Legendary
Ok. This is what I have come up with so far on how to test whether a particular lifter is good or bad.
1)If the lifter is solid/stuck - Dismantle and clean all the parts of the lifter and put it back together. Dip in oil and pump the top plunger two three times. If the lifter is good then it should go solid with no squishy movement. If still squishy after pumping dipped in oil then it's bad.
2)If the lifter is squishy - Dip in oil and pump the top plunger two three times. If the lifter is good then it should go solid with no squishy movement. If still squishy after pumping dipped in oil then it's bad.
3)Also check the lifter crown to ensure it is slightly convex. If it's flat, then the lifter needs replacing.
Last edited by dom14; 23rd October 2017 at 11:41 AM.
-
The Following User Says Thank You to dom14 For This Useful Post:
mudski (23rd October 2017)
-
23rd October 2017 03:32 AM
# ADS
Circuit advertisement
-
23rd October 2017, 08:37 AM
#12
mmm from memory the Isuzu ones go rock hard and don't bleed down when new . That was in the v6 ones . There was only a problem if the oil was not looked after . We used to pull them apart and clean them with thinners and wipe them with fine scotch bright .
assemble them with light oil like sewing machine oil . Some I even put in the ultra-sonic cleaner. for the day . they like nice clean and thin oil ! hope t5his helps
-
The Following User Says Thank You to Tip12345 For This Useful Post:
dom14 (23rd October 2017)
-
23rd October 2017, 11:35 AM
#13
Legendary
-
-
23rd October 2017, 05:53 PM
#14
Expert
what ever you do dom. NEVER PUT A USED LIFTER ON A DIFFERENT CAM LOBE. unless the new lifter was run in to the particular lobe never ever swap them around or you will destroy the cam lobe, flat tappet lifters will surface harden as they run in agains a particular cam lobe swapping the lobe a lifter runs on is a sure fire way to wape a lobe off the cam.
http://www.cranecams.com.au/pdfs/Rea...%20Failure.pdf
and you must go through a break in procedure when fitting new lifters even on a used cam
http://www.cranecams.com.au/pdfs/CAM...0PROCEDURE.pdf
the only lifters that can be swapped around etc are roller lifters
gone to the dark side 2017 vdj 79 dc
-
The Following 2 Users Say Thank You to billyj For This Useful Post:
dom14 (24th October 2017), mudnut (23rd October 2017)
-
24th October 2017, 01:48 AM
#15
Legendary
Originally Posted by
billyj
what ever you do dom. NEVER PUT A USED LIFTER ON A DIFFERENT CAM LOBE. unless the new lifter was run in to the particular lobe never ever swap them around or you will destroy the cam lobe, flat tappet lifters will surface harden as they run in agains a particular cam lobe swapping the lobe a lifter runs on is a sure fire way to wape a lobe off the cam.
http://www.cranecams.com.au/pdfs/Rea...%20Failure.pdf
and you must go through a break in procedure when fitting new lifters even on a used cam
http://www.cranecams.com.au/pdfs/CAM...0PROCEDURE.pdf
the only lifters that can be swapped around etc are roller lifters
Cool, thanx mate. I didn't swap them. I had a vague memory Haynes manual advising not to do that as well.
I learnt a fair bit about hydraulic lifters & cams in one day.
I was contemplating on doing something dodgy like turning the lifter head into a convex one by grinding and polishing, but I won't.
I bumped into a bastard of a problem today when I realize I couldn't get the cam gear in with the timing belt attached.
The extra thickness from the better cylinder head & new gasket made it impossible.
I have to pull the timing cover, fan, shroud, harmonic balancer etc to access the damn timing belt tensioner to loosen it up a bit
to get the cam gear into the slot. What a bummer. It ate my whole evening.
-
-
25th October 2017, 01:12 PM
#16
Legendary
I have a bit of hydraulic lifter noise from the front of the engine.
I gathered below links that sort of explains hydraulic lifter noise & how to locate & diagnose them while they are fitted to the car.
https://itstillruns.com/causes-lifte...-12216682.html
http://www.hotrodders.com/forum/how-...er-136820.html
http://www.passatworld.com/forums/b5...ifter-bad.html
-
-
17th March 2020, 10:05 PM
#17
Thanks Dom. Gravedig but I think this may be my problem. Hope you are well mate, has been a long time.
-
-
18th March 2020, 12:57 AM
#18
Patrol God
Unfortunately, Dom will probably not be back. It was sad to watch the turn of events that caused him to leave.
-