Hydraulic lifters

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Davegrohl99
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Hydraulic lifters

Post by Davegrohl99 »

Hi on my 2.0 CU Aircooled engine the tappets are quite noisy. And all of a sudden. Had a look and found that one of the hydraulic lifters has become squishy.

Is this a sign of a new one is needed all the other ones are hard when pushing in with the push rod.

Thanks!



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1981 Westfalia 2.0 CU engine.
1971 Early Bay Microbus.

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Cobra88
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Re: Hydraulic lifters

Post by Cobra88 »

low oil level.
due an oil change.
wrong grade of oil.
not been run out on road for a while.

could be the above or possibly just that follower is damaged
Rick
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84 CaravelleGL 1.9 DG WBX Bronze Beige Metallic auto

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Davegrohl99
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Re: Hydraulic lifters

Post by Davegrohl99 »

I changed the oil whilst I had it up on the lift.

It was at a good level before I changed it and prob only had 1500km on the oil.

I have changed oil filter and new 20W50 mineral oil. I have always used this grade of oil.

Yes it hasnt been driven in a couple of days but its gets at least a drive once a week. Did about 150km last weekend.

It was definitely squishy so either air is trapped or its given up the go. I might order a few to have spare even thought they are quite expensive.

Thanks for the help!

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1981 Westfalia 2.0 CU engine.
1971 Early Bay Microbus.

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Cobra88
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Re: Hydraulic lifters

Post by Cobra88 »

oh dear, probably a dying lifter then :(

might be worth looking at the end of the rocker screws but you probably already did that.

on my wbx i had a pushrod that wasn't letting the oil go through it but not sure if Aircooled have oil flowing through the pushrods
like the wbx.

i might be wrong but it looks like they have oil running through them ;)

Rick
____________________________________________
84 CaravelleGL 1.9 DG WBX Bronze Beige Metallic auto

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Davegrohl99
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Re: Hydraulic lifters

Post by Davegrohl99 »

Ya they do indeed have a passage for oil. I cleaned them all out and blew with a compressor when re installing after the rebuild.

Looks like a few new Lifters will be heading my way soon

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1981 Westfalia 2.0 CU engine.
1971 Early Bay Microbus.

davidoft1
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Re: Hydraulic lifters

Post by davidoft1 »

You can just replace one, run it for a while until it pumps up, repro ones don’t seem to be as good as originals, on the plus side air cooled ones are pretty easy to change
Last edited by davidoft1 on 06 Dec 2020, 19:38, edited 1 time in total.

Rosie n' Jim
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Re: Hydraulic lifters

Post by Rosie n' Jim »

Mine quietens down quicker as the oil warms, but in this cold spell that takes much longer.
1982 Holdsworth poptop. 2L CU Aircooled.
1982 Danbury tintop Caravelle. 2L CU Aircooled.

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sarran1955
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Re: Hydraulic lifters

Post by sarran1955 »

Hello,
Davegrohl99 wrote: 05 Dec 2020, 17:27 Hi on my 2.0 CU Aircooled engine the tappets are quite noisy. And all of a sudden. Had a look and found that one of the hydraulic lifters h
as become squishy.

Is this a sign of a new one is needed all the other ones are hard when pushing in with the push rod.

Thanks!



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These often leak down, as they are intended to rotate gently when in use.. so odds are you have 1 that is a bit stuck in position..
I have 1 on my CT that does this... a good 30 minute run will put things right..

Then check your tappets, engine warm, 1 litre of oil drained, contact + 1 to 1 1/2 turns, ...

The trouble with aftermarket cam followers is that they are rarely as good as OEM.....Kolbenschmidt..

Cordialement,

:ok
 
Help and advice on Aircooled engines here:
http://www.youtube.com/user/sarran1955/videos?view=0" onclick="window.open(this.href);return false;

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Davegrohl99
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Re: Hydraulic lifters

Post by Davegrohl99 »

Replaced it this evening with OEM Kolbenschmidt from brickwerks. Went round and checked the rest while I was there.

Took it for a run and no more noise.

Job done. Until the next thing breaks

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1981 Westfalia 2.0 CU engine.
1971 Early Bay Microbus.

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