3.8 Engine rebuild
#221
Join Date: Nov 2012
Location: Joyner, Queensland, Australia
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Glyn M Ruck (07-30-2024)
#222
Oil Pressure
I replaced the pressure relief spring and the oil pressure is good now. It's got a Pertronix distributor and I just installed the correct coil for this distributor and it is running great.
The engine has 130 miles on it, I'm going for a 500 mile break-in period. I just got back from a 30 mile run.
The engine has 130 miles on it, I'm going for a 500 mile break-in period. I just got back from a 30 mile run.
Last edited by jayd2; 08-01-2024 at 01:24 PM.
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#223
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Cass3958 (08-01-2024),
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Peter3442 (08-02-2024)
#224
#225
Since you are starting from a clean engine, type doesn't really matter. The original type is now equivalent to Pentofrost NF. That's a concentrate you dilute.
Datasheet: https://crpautomotive.com/wp-content...tofrost-NF.pdf
Datasheet: https://crpautomotive.com/wp-content...tofrost-NF.pdf
#226
Engine Oil capacity
Engine oil capacity. The manual shows 15 1/2 pints (9.3 quarts) or 7 1/2 Liters (7.92 quarts), which is it? I used 9.3 quarts during engine break-in. With the engine off the oil level is at the top of the dipstick Full marker.
Do you check the oil with the engine off or running? It has a vertical type oil filter, it drains some oil when the engine is off.
Do you check the oil with the engine off or running? It has a vertical type oil filter, it drains some oil when the engine is off.
Last edited by jayd2; 08-14-2024 at 06:02 PM.
#227
The manual I have says the total capacity is 13 pints, or 7.5L, and the refill capacity is 11 pints, or 6.25L. Note that the pints refer to UK pints, and the UK system is different from the US system. The number of ounces in a pint/quart are different, and the size of the ounce is also different between UK and US measure. Thus, I prefer metric measure, as there is only one liter!
Oil is checked with the engine off, and leave it for about 10 min to allow all the oil to drain back to the sump.
Oil is checked with the engine off, and leave it for about 10 min to allow all the oil to drain back to the sump.
#228
Engine oil capacity. The manual shows 15 1/2 pints (9.3 quarts) or 7 1/2 Liters (7.92 quarts), which is it? I used 9.3 quarts during engine break-in. With the engine off the oil level is at the top of the dipstick Full marker.
Do you check the oil with the engine off or running? It has a vertical type oil filter, it drains some oil when the engine is off.
Do you check the oil with the engine off or running? It has a vertical type oil filter, it drains some oil when the engine is off.
a subsequent stop at the gas station, a day or two later, revealed no oil on the dipstick (redemption #1)!! fortunately, i monitor the oil pressure gauge while driving (redemption #2) and hadn't noticed any particular decrease in oil pressure, but i immediately threw in a quart (U.S.) and checked again, and another quart, and another!
when i got home i quickly looked up the capacity and found that after the oil change i had refilled with only a bit over half of what was required. *headsmack*
i figure i dodged a bullet.
Last edited by hueyhoolihan; 08-14-2024 at 06:25 PM.
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Peter3442 (08-15-2024)
#229
#230
so if we assume 15.5 pints (U.S.) is the capacity without a filter then half of that number (7.75) is capacity in U.S quarts.
when all was said and done on my 67 3.4l engine i got a full reading with a new filter on the dipstick with about 8.5 U.S quarts. which is within reason, i think.
Last edited by hueyhoolihan; 08-14-2024 at 06:54 PM.
#231
Here's a photo of my dipstick, it has a weld bead added in the full zone. Is this factory or did someone just add it?
#232
#233
#234
I don't know if this dipstick is correct for the block I have, and there's no part number on it.
#235
Engine Oil - Refill and Total
Manual Reference:
Does "Refill" capacity refer to changing the oil and filter?
Does "Total" capacity refer to a new engine or fresh rebuild?
The invoice for oil was for 8 quarts, not 9, and there was a 1/4 of quart still in one one bottle. I must have converted the pints correctly the first time.
I dropped the oil level to where the weld is. Maybe this will relieve some of the rear main leak.
Does "Refill" capacity refer to changing the oil and filter?
Does "Total" capacity refer to a new engine or fresh rebuild?
The invoice for oil was for 8 quarts, not 9, and there was a 1/4 of quart still in one one bottle. I must have converted the pints correctly the first time.
I dropped the oil level to where the weld is. Maybe this will relieve some of the rear main leak.
#236
My 3.4 S Type with an original dipstick has three marks on it reading 3.4, 3.8 and 4.2 then above that the hatch markings. When I fill the oil it comes up the dipstick and covers the 3.4 mark.
According to the blue service book the oil capacities are 12 Pints Imperial or 14.5 pints US or 6.75 Litres. I go with litres in the UK as everything is sold in Litres but we still drink Pints of beer and Milk. Stupid systems.
According to the blue service book the oil capacities are 12 Pints Imperial or 14.5 pints US or 6.75 Litres. I go with litres in the UK as everything is sold in Litres but we still drink Pints of beer and Milk. Stupid systems.
#237
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Glyn M Ruck (08-15-2024)
#238
Join Date: Jul 2012
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#239
My 3.4 S Type with an original dipstick has three marks on it reading 3.4, 3.8 and 4.2 then above that the hatch markings. When I fill the oil it comes up the dipstick and covers the 3.4 mark.
According to the blue service book the oil capacities are 12 Pints Imperial or 14.5 pints US or 6.75 Litres. I go with litres in the UK as everything is sold in Litres but we still drink Pints of beer and Milk. Stupid systems.
According to the blue service book the oil capacities are 12 Pints Imperial or 14.5 pints US or 6.75 Litres. I go with litres in the UK as everything is sold in Litres but we still drink Pints of beer and Milk. Stupid systems.
looking at the stick, i would have assumed that the maximum and minimum fill levels corresponded to the upper and lower extent of the hashmarks and the numbers below it were informing the user that the stick was appropriate for use with the 3.4l, 3.8l and 4.2l engines.
#240
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Glyn M Ruck (08-15-2024)