Pelican Parts

Tappets good or bad

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHTappets good or bad

Leading reported evidence

Clean oil at about 200 degrees

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No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
Proper way to test them is submerge in clean oil at about 200 degrees.
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Tappets good or bad

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Leading evidence: 'Clean oil at about 200 degrees' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean oil at about 200 degrees' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Clean oil at about 200 degrees

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Proper way to test them is submerge in clean oil at about 200 degrees.
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Tappets good or bad

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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Pelican Parts: 1 discussions

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Generation: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey everyone new guy here......thanks for having me! So I have a question about tappets in the housing (996-104-042-05) On the intake tappets (99610525525) I can slightly push 4 of the down moving about 1/8” and 2 I can’t push down at all. So basically I’m trying to figure out which are bad and which are good. As for the exhaust tappets (99610504172) none of them will push down, so are they good or bad...... I’m baffled! Thanks so much for your time.

POST 2Original post

On oil fed tappets, if you can push them down at all, then the check valve are bad.

POST 3 / ORIGINAL POSTEROriginal post

Yeah that’s what I figured....thanks. I wonder if you can rebuild them

POST 4Original post

Quotes source post: 9958959

Yes, you can rebuild them, but it is a chore. What are the costs of new ones?

POST 5 / ORIGINAL POSTEROriginal post

Cheapest I found was 137.00 a piece........I figured out how to rebuild them it is a chore but if you take your time you can do it..

POST 6Original post

Good, post some pictures and the instruction for all to follow next time. That is a $3200 saving.

POST 7Original post

Quotes source post: 9958959

Proper way to test them is submerge in clean oil at about 200 degrees. You will see them purge debris as you pump the plunger. Those that cannot be pumped are excessively clogged & should be replaced.

POST 8 / ORIGINAL POSTEROriginal post

I will post some pics .....the newer intake tappet has a clip holding the bottom washer on..... but the older tappets (99610525520) are what I rebuilt......

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