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18mm bolt-style top dead πŸ”§ center stop by comp cams 4792 logo

18mm Bolt-Style Top Dead πŸ”§ Center Stop by COMP Cams 4792 Review

4

Β·

Very good

Revainrating 4.5 out of 5Β Β 
RatingΒ 
4.3
πŸš€ Engines & Engine Parts, 🏎️ Performance Car Parts & Accessories

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Description of 18mm Bolt-Style Top Dead πŸ”§ Center Stop by COMP Cams 4792

Positively stop piston in order to find Top Dead Center (TDC). Bolt style screws into spark plug hole while plate type bolts across any cylinder bore when heads are off. Features bolt style screws and plate type bolts. Manufactured using high quality material. Easy installation.

Reviews

Global ratings 4
  • 5
    1
  • 4
    3
  • 3
    0
  • 2
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  • 1
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Type of review

Revainrating 4 out of 5

Ok could be better

I accidentally bought 18mm, I found 14mm on the spot, seems to work, I used it on BBC, spark plugs in this engine are 'flat' in comparison to a high angle to keep the stopper from screwing all the way in and touching the plunger, but I took a chunk of the entire thread and it worked fine. Twists, although I'm not sure if it matters, this part was still a good start for not doing it yourself.

Pros
  • Engine parts
Cons
  • Safety

Revainrating 4 out of 5

Ok could be better

18mm bought by mistake, 14mm found locally, seems to work, used at BBS, spark plugs "flat" on this engine too high compared to the engine angle, so the plug wasn't screwed all the way in and touching the plunger, but I took a bit of all the threads and it worked fine. than maybe 2 full turns, although I'm not sure if that matters, this part was still a good start for not doing it yourself.

Pros
  • Easy install
Cons
  • Questionable purchase for elderly

Revainrating 5 out of 5

I needed to find a TDC on a 1965 F100 and .

I needed to find the TDC on a 1965 F100 and it worked fine. These tools make it easier for me to remove ALL the spark plugs so I don't have to struggle with engine compression.

Pros
  • Automotive
Cons
  • Doubtful Senior Purchase

Revainrating 4 out of 5

Ok could be better

I bought the 18mm by mistake, I found the 14mm locally, it seemed to work, I used it on the BBC, spark plugs 'flat' in this one Motor compared to a high angle motor so the stopper doesn't screw all the way in and touch the piston, but I took a chunk of the entire thread and it worked fine. maybe 2 full turns but not sure if that matters, that part was still a good start for not doing it yourself.

Pros
  • Engines and engine parts
Cons
  • Very expensive