- Joined
- Sep 25, 2020
- Messages
- 189
Our 2018 durango with 93k
Updated gen 2 valvetrain with the new style intake lifters(basically a flat tappet hybrid instead of the gen 1 rollers)
Right bank intake cam has 4 wiped out lobes and 3 bad rockers. We bought this used and it has had a steady diet of premium motor oil and filter for the last 60k. Has had a minor tick for probably 40k with no noticible debris in the oil filter. Last week it started throwing misfires on the right bank.
The gen 1s had issues with the lifters eating the roller bearing then damaging cams. This looks like it had a bad cam casting to me then it destroyed the lifters.
I've included a picture of gen 1 vs gen 2 lifters
Unfortunately for us these lifters are $75 apiece vs the $6 gen 1. Camshaft was a reasonable $150
Updated gen 2 valvetrain with the new style intake lifters(basically a flat tappet hybrid instead of the gen 1 rollers)
Right bank intake cam has 4 wiped out lobes and 3 bad rockers. We bought this used and it has had a steady diet of premium motor oil and filter for the last 60k. Has had a minor tick for probably 40k with no noticible debris in the oil filter. Last week it started throwing misfires on the right bank.
The gen 1s had issues with the lifters eating the roller bearing then damaging cams. This looks like it had a bad cam casting to me then it destroyed the lifters.
I've included a picture of gen 1 vs gen 2 lifters
Unfortunately for us these lifters are $75 apiece vs the $6 gen 1. Camshaft was a reasonable $150
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