Automotive RepairDiagnostics & Troubleshooting4HighOwner$ implied

DIY mechanic cannot align camshaft timing marks after rotating crankshaft to TDC, unsure if engine is out of time or what caused rocker arm to dislodge, and needs a clear diagnostic procedure.

Existing timing marks are confusing when crank is at TDC but cams are not aligned; no interactive guide or visual tool exists for dual camshaft timing verification without specialized equipment.

Opp. Score

Severity

4High

Willingness to Pay

implied

Added

May 29, 2026

Workarounds Described

rotated crankshaft to TDC=0 and found cams behind
attached pictures to forum for help
attempted to align color links on chain but could not match

Implied Software Gaps

Interactive timing verification app that cross-references crank position with cam marks using photos
Diagnostic tool that explains likely causes of rocker arm dislodgement and timing discrepancies

App Concept

CamAlign Pro

CamAlign Pro is a mobile diagnostic app for DIY mechanics and small shops that guides step-by-step camshaft timing verification using photos of marks and crankshaft position. It compares user-provided images against a database of engine timing patterns to identify misalignment causes and suggests corrections. Unlike static manuals or forum posts, it provides interactive, engine-specific troubleshooting.

Key Features

Photo-based mark detection: snap a photo of timing marks and app identifies position relative to TDC
Engine-specific database: covers major manufacturers and dual-cam configurations
Step-by-step diagnostic flow: walks user through common causes like chain stretch or skipped teeth
Resource links: direct to part suppliers and repair videos for replacements

Target Users: Home DIY mechanics and small automotive repair shops working on overhead camshaft engines

Revenue Model: $4.99 per engine diagnostic or $19.99/month subscription for unlimited diagnostics

Existing Solutions Mentioned

manual timing markschain color links

Part of App Idea

Timing is off on both cams by one tick in opposite directions, requiring manual adjustment of cam sprockets.

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