This is what a cam failure looks like

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bsa_m21
Spanner Man
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Joined: Mon Mar 02, 2015 1:30 pm
Location: Surrey, BC

This is what a cam failure looks like

#1 Post by bsa_m21 » Mon Feb 06, 2023 3:46 pm

This is what a 3.5/3.9/4.0/4.6L cam/lifter failure (my '96 D1, actually) looks like..... :x
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This damage occurred shortly after doing head gaskets and installing new lifters and oil pump. I had cleaned everything and I thought I'd flushed it all enough. I primed it, but maybe some crud in a passage blocked the oil feed for a bit on startup. Doesn't take much to do damage. Block and oil pump look good, all the oil passages are now triple flushed and clear, pan and sump removed and cleaned. One lifter bore is scored a bit so I still have to hone it. Needless to say, new cam and lifters are on order.

I would say "Bloody Land Rovers", except this is likely my fault for not taking enough care on the clean and prime. :roll:
This is the 3rd LR 3.5/3.9/4.0/4.6L motor I've redone, but the first that I really screwed up. Lesson learned.

harv
Maxi Drive
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Joined: Mon Oct 22, 2007 9:49 am
Location: Kelowna, BC

Re: This is what a cam failure looks like

#2 Post by harv » Mon Feb 06, 2023 8:03 pm

Thanks for the info.

yrayray
Muddy Tyres
Posts: 64
Joined: Fri Mar 18, 2022 10:31 am

Re: This is what a cam failure looks like

#3 Post by yrayray » Tue Feb 07, 2023 10:55 am

what did it sound like at start up?

rgallant
Cylinder bore
Posts: 463
Joined: Wed Sep 06, 2017 12:38 pm
Location: Mission

Re: This is what a cam failure looks like

#4 Post by rgallant » Fri Feb 10, 2023 1:00 pm

Wow that is nasty

bsa_m21
Spanner Man
Posts: 811
Joined: Mon Mar 02, 2015 1:30 pm
Location: Surrey, BC

Re: This is what a cam failure looks like

#5 Post by bsa_m21 » Fri Feb 10, 2023 3:00 pm

yrayray wrote: Tue Feb 07, 2023 10:55 am what did it sound like at start up?
I primed it for 20 seconds or so, then put the fuel pump fuse back in and started it. It clacked for a few seconds then the oil light went out and she quieted right away. I drove it for several days before it started getting noisy. Unfortunately I was a fair ways from home and it was bad by the time I got there. After that I only started it to pull into the garage. 😩

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