Hey everyone,

Newbie to the forums and y blocks here. I just got done with a 64 Correct Craft boat powered with a flywheel forward, 6 banger, Falcon 170CI engine.. Now,I am on to my next project, a 1962 Correct Craft boat with a 312 inboard. A quick history:

 The PO had the engine rebuilt about 3 years ago. It only has an hour or so of run time, due to side draft carb issues.  He started to install a factory 4bbl auotomotive intake a couple years ago, but lost interest when it came to re-plumbing it. I bought the boat last fall and am now getting around to working on it. 

A couple of hopefully small issues....

 1).... I noticed it had a small, but annoying oil leak somewhere from the pan area. Yesterday, I decided to pull the engine. I cleaned it and let it set overnight. Today I notice a very small leak coming from underneath the bolt heads that fasten the flange of the oil pump tube into the pan. It also seems to weep a bit from around the tube/flange area. Do these bolts need thread sealer? (remember a cast aluminum oil pan)    Is the tube somehow sealed to the flange itself?

2) the other thing I noticed is a rusty water "trail", on the right side of the block, towards the front. There is a small hole that looks like a 3/8" pipe plug in it. The problem is there is a hole in the center of it. I'm guessing its whats left of a block drain.  Question, is that hole in fact tapped?  Any ideas on trying to get it out? I will probably try to heat it and use an easy-out. Other ideas?

Thanks in advance!

I have no experience with an aluminium sump for a Yblock? Butif it is leaking from the bolts it certainly needs some sort of thread sealer on the bolt threads. Ptfe tape would not be appropriate. I am sure others here wil l have some info on sealants available in the US.

As for the water leak it is probably as you say from an old block drain. They did have them fitted where you mention. They are brass, 1/4" BSP/NPT thread and will be a pain to get out. You can try drilling and using an eziout/bolt extractor, but if all else fails drill it out and retap the thread to suit the original 1/4"NPT. Heat will help the process. Just be sure not to drill it out too big else you will have to tap it to a larger size.

Regards

Rick - West Australia
Do Y Blocks Downunder run upside down? Gravity Sucks!!