cooter
Well-Known Member
You mean corvair
Jarrett's 27 roadster
- Thread starter cooter
- Start date
young gun
Member
Ya
Island Girl
Well-Known Member
Have you guys had that block hot tanked and magnafluxed?
I remember reading this thread from the beginning a while back, but my recollection fails me on the block prep.
There's a lot of what looks to be serious corrosion in the threads in that first pic, which usually means some one ran water without antifreeze, usually a cost cutting work around when there's a water leak requiring regular refills . . .
The stain lines are not exactly encouraging either, although they could be benign.
If it were my block, and I do have a 305 on a stand as I speak, I'd chase all those threads and do a very careful visual inspection for corrosion damaged threads, which won't seal correctly when you put in the head bolts, no matter how much sealer you put on them.
Now is the time to be sure that you're building your motor on a solid foundation. . . . Nothing is more depressing than seeing steam in the exhaust or water in the oil after a labor intensive rebuild.
Darlene
I remember reading this thread from the beginning a while back, but my recollection fails me on the block prep.
There's a lot of what looks to be serious corrosion in the threads in that first pic, which usually means some one ran water without antifreeze, usually a cost cutting work around when there's a water leak requiring regular refills . . .
The stain lines are not exactly encouraging either, although they could be benign.
If it were my block, and I do have a 305 on a stand as I speak, I'd chase all those threads and do a very careful visual inspection for corrosion damaged threads, which won't seal correctly when you put in the head bolts, no matter how much sealer you put on them.
Now is the time to be sure that you're building your motor on a solid foundation. . . . Nothing is more depressing than seeing steam in the exhaust or water in the oil after a labor intensive rebuild.
Darlene
IG, I think he is just doing a refresh job by honing and re-ring with new bearings. Not looking for HP but dependability.
I hate to say it but he isn't old enough to drive yet--LEGALLY. Sorry Young Gun.
cooter
Well-Known Member
He is on a very low budget. Just doing a rebuild. This is his first teardown and reassemble. We didn't hot tank the block. Truck was running when we pulled the engine. It was border line needing a bore job but being this is a learning experience we gonna try just a rebuild on a budget. He has another engine, 350 he can tear down in the future to build a 355. He can do a blueprint job on that one some day.
fletcherson
Well-Known Member
Nothin wrong with a budget refresh as long as it’s within reasonable tolerance... will it run as good or long as a “correct” rebuild? No! But what do you need? As long as the cylinders are round and not tapered.... file fit the rings, use cast rings, check em top and botom of the bores. It’s a good learning experience! I was back yard rebuilding motors for go carts, dirt bikes, etc when I was real young... and not the “correct way” I learned a lot. Nice to see young people with interest in mechanical things.
Island Girl
Well-Known Member
Since he's already started putting the pistons back in, be sure he rotates the block so each deck is facing down before he chases the threads on that deck, let gravity work with you rather than against you to keep the rust flakes out of the bores.
I did a lot of VWs and Corvairs back in the day and have been known to cut and overlap head gasket/seal rings when didn't have no money. Never had a failure.
JeffK
Member
I remember taking valve lifters apart and cleaning them LOL. Ahhh, the good old days....balancing? new gaskets? swapping parts from donor engines? pfft It was great being a kid (and cheaper lol) Never had a failure and like most high school kids beat the snot of that car (my avatar) I did however go to Auto Vo-Tech in high school and learn things the right way lol
fletcherson
Well-Known Member
We’re all poor compared to somebody, lol... funny, I’ve had well off people tell me how much they envy my abilities to do various different things... I tell them to be careful what they wish for, there was a price paid for that knowledge....When you're poor, any way is better than no way. Just git 'er done. BTDT I was once poor--Oh I still am!
He's got Grandpa and Grandma who I personally think are great people for instilling values and dedication as well as knowing right from wrong and when to ask for help which instills humility. Good ole country folks , the whole family that are rich in love for each other as well as our Country and T-Buckets and what work goes into building one of these cars so he can be proud of his accomplishments and not boast/brag about it but make straight forward statements like-I built that in my shop - with the help of lots of friends. Too Mushy? But the truth!!
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