GJCruiser

I have one for a 72.

Exactly. Just haven't figured out the thread pitch and size yet.

Factory temp and oil pressure gauges work well as does the mechanical oil gauge. Water ran clear after about 15 minutes running. I have previously flushed the block using the drain to the rear. I'm becoming more comfortable that hole is now...

Those photos confirm the engine block drain and the oil sender! Below, an old post from Ed Degnol, Mark Whatley concurred. -------------------------------------------------------------------------------- If it is the hole you can see just...

Below-----An old post from Ed Degnol, Mark Whatley concurred. If it is the hole you can see just forward and above the block drain, it is a blind hole on my 12/76 block........ The un-drilled, untapped boss you can see forward and slightly lower...

The hole is blind tapped, about 1/2" deep, and I'm 75% sure it would connect to the water jacket. Reading some old messages seem to state the flat unmachined boss lower down was for the oil sender in some cases. I still need to prove that...

The hole is blind tapped, about 1/2" deep, and I'm 75% sure it would connect to the water jacket. Reading some old messages seem to state the flat unmachined boss lower down was for the oil sender in some cases. I still need to prove that...

A PO tapped a mechanical oil gauge sender at the oil cooler. I had no reason to ever notice that spot. Today, I will go out and verify if the weeping hole is plugged or not. Obviously, everything comes down to whether or not that hole is for...

A PO tapped a mechanical oil gauge sender at the oil cooler. I had no reason to ever notice that spot. Today, I will go out and verify if the weeping hole is plugged or not. Obviously, everything comes down to whether or not that hole is for...

My concern is that it weeped during the coolant pressure test and searching seems to indicate an oil sender may go there!

But it seeped water during the coolant pressure test.

This is an early (1975) 2F. I'm reading that 1Fs and early 2Fs had their oil sender there? On my vehicle, the PO installed a mechanical oil pressure gauge in the oil cooler. Note---My leak from that hole is water though.

This is an early (1975) 2F. I'm reading that 1Fs and early 2Fs had their oil sender there? On my vehicle, the PO installed a mechanical oil pressure gauge in the oil cooler. Note---My leak from that hole is water though.

I installed the core plugs today and followed up with a pressure test of the coolant system. Everything looked good. Had a very slow leak (about 1psi/hour) but couldn't find it. Filled radiator with water (it fills, no water in oil) and repeated...

I installed the core plugs today and followed up with a pressure test of the coolant system. Everything looked good. Had a very slow leak (about 1psi/hour) but couldn't find it. Filled radiator with water (it fills, no water in oil) and...

I was aware of a loan a tool for plug installation. Many videos just use a socket. Is there a loan a tool option to pressure test? Thanks

J Mack that's interesting. I'm still debating pulling the rocker shaft or not. I was trying to save the extra work of readjusting the valves again when it had just been done, then buttoning up to later find a crack in the head. The videos I've...

Yeah, I'm aware there may still be a crack. I was trying to short the procedure by saving pulling the rocker shaft and having to readjust the valve clearances. That's probably short thinking. I'll pull the rocker shaft and start over. Just...

I've since watched twenty videos. I'll clean the bore well and use Permatex #1 (old Jim C. post) to seal the plugs. Originally I was trying to avoid the whole valve adjustment procedure. I guess I was being short-sighted. I'm getting advice to...

Does anyone have experience/an idea how I might reinstall the plugs with rocker shaft in place? The shaft is directly above the plug holes but high enough to make the angle slight. My guess is it depends on the required method to install the...

Removed side inspection cover and freeze plugs looked intact. Added water to radiator and water started flowing down out of pushrod holes from above. Removed valve cover to observe the first three (in row from front to back) freeze plugs lying...

Does anyone have experience/an idea how I might reinstall the plugs with rocker shaft in place? The shaft is directly above the plug holes but high enough to make the angle slight. My guess is it depends on the required method to install the...

Removed side inspection cover and freeze plugs looked intact. Added water to radiator and water started flowing down out of pushrod holes from above. Removed valve cover to observe the first three (in row from front to back) freeze plugs lying...

BOBWhite74. Two learnings from your photo. The top of the head has plugs too, and your leak looks rather slow compared to what I'm expecting to see. I hope mine is easier to spot!

Yeah, I'm thinking the same. Once the water came out, the discharge rate was that of hot oil during an oil change. Among all else going on, I have a major dental appointment midday. Not sure I'll get to the cover today.