Hi all,
I finally got around to checking my compression and wanted to get the forum's advice on how things looked...
1974 FJ40 with 1.5F
Engine seems like it has ~90k miles (speedo was broken when I got it, but it was from original owner and looked like it sat a bunch)
It has Sniper EFI 2300 installed
It has an Offenhauser 4 barrel intake that I have an adapter plate (HVH Super Sucker Carb Spacer)
Non-US distributor from City Racer
The compression numbers are
When I pulled the plugs, some looked good... others not so much.
One observation when turning the engine over with no plugs, is that cylinder #6 seemed like fuel sprayed out, but no other cylinder seemed to do so.
I would love some help in understanding how these look to the experts...
1) Do the plugs look normal? 2, 4 and 5 seem to much darker. #2 looks the worst of the bunch (close up below)
2) Should the head be looked into for the compression numbers? I may have misread #1 Dry (first reading taken and with a new gauge, but I think I did it right), and #6 Wet is way above the others.
Any feedback or general advice is welcomed. I appreciate the support/help.
Thank you.
Craig
Plug #2.
I finally got around to checking my compression and wanted to get the forum's advice on how things looked...
1974 FJ40 with 1.5F
Engine seems like it has ~90k miles (speedo was broken when I got it, but it was from original owner and looked like it sat a bunch)
It has Sniper EFI 2300 installed
It has an Offenhauser 4 barrel intake that I have an adapter plate (HVH Super Sucker Carb Spacer)
Non-US distributor from City Racer
The compression numbers are
Cylinder #1 |
|
|
|
|
| ||||||||||||||||
Dry | 145 | 130 | 125 | 125 | 125 | 130 | |||||||||||||||
Wet | 135 | 128 | 133 | 133 | 134 | 190 |
When I pulled the plugs, some looked good... others not so much.
One observation when turning the engine over with no plugs, is that cylinder #6 seemed like fuel sprayed out, but no other cylinder seemed to do so.
I would love some help in understanding how these look to the experts...
1) Do the plugs look normal? 2, 4 and 5 seem to much darker. #2 looks the worst of the bunch (close up below)
2) Should the head be looked into for the compression numbers? I may have misread #1 Dry (first reading taken and with a new gauge, but I think I did it right), and #6 Wet is way above the others.
Any feedback or general advice is welcomed. I appreciate the support/help.
Thank you.
Craig
Plug #2.