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TOPIC: 1974 Glastron Carlson CV21

Re:1974 Glastron Carlson CV21 7 months 4 weeks ago #130520

Thanks guys , when i had my GT160 it always got a ton of attention . There's just something about the old boats that the new ones cant compete with who cares if new boats have bluetooth /USB ports and a built in cooler, ah phooey mine has a big block Oldsmobile with open exhaust and tons of metal flake and polished aluminum lol .

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Re:1974 Glastron Carlson CV21 5 months 3 weeks ago #131561

First time its seen the light of day this year , the motor is getting sent off to the machine shop this week for a tear down , inspection and mild rebuild .





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Re:1974 Glastron Carlson CV21 5 months 3 weeks ago #131562

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Looks really great. That style never goes out of date. The others would gladly give up the bluetooth if they had one of those. Consider it adding to the water level when they drool all over their cookie cutter plastic stamp outs.

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1974 Glastron Carlson CV21 5 months 3 weeks ago #131571

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Simply love it. Once I saw the Glastron sponsored "Live and let die " Bond movie, I loved watching for all "Bond" featured boats throughout the summer. Any plans for 8 pipes sticking up?... just kidding. You Rocked that restoration!!

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Dr.Go!

1974 Glastron Carlson CV21 5 months 6 days ago #131861

The good the not so good and the ugly . The good the crank will only need .010 under grind , the is just your original run of the mill 1970 455 that hasn't been taken apart and doesn't have any cracks yea ! The not so good is hole number three has some pitting from it sitting for so many years , the machinist thinks a .060 bore will remove them if not it will have to be sleeved and the block decked "cha ching" . The ugly , the heads are your run of the mill 2.00 intake nothing special heads that need a complete overhaul that have already been worked on as in knurled guides and they're warped to boot . I'm going to focus on getting the block done with new forged pistons (gonna try to get at least 9 to 1 ) , forged rods , a more aggressive cam and lifters . The next thing will be aluminum heads with 2.075 intakes the adjustable rockers . I'm kicking myself in the arse for selling my little 160 .








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1974 Glastron Carlson CV21 4 months 2 weeks ago #132279

The engine parts are startin to trickle in , just got the forged H beam rods , timing gears and chain , the forged flat top pistons are on a truck somewhere on their way here . I had the machinist sleeve number three, that way im keeping the bore to .030 over , as soon as he gets the pistons he'll finish the boring and honing . I'm having him assemble a short block with oiling modification , crank and pistons then i'll finish it .



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1974 Glastron Carlson CV21 3 months 3 days ago #132922

The motor is going back together , the only parts that are original are the block and crank . I guess a mild freshin up went out the window .


















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1974 Glastron Carlson CV21 2 months 3 weeks ago #133081

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Looking good Gil!!! A few things and not trying to be alarmist but pistons look like comp would be high although you can get away with more on aluminum heads. Surprised he did not use main studs, way better where Olds are two bolt mains and cranks are very large/ heavy.. Cam should be all in at 4600, it looks a tad big.
I picked up a jet this year although not a Glastron. My GT 160 will be at the wolf or o show this Sat, came out real nice, your decals were the crowning touch.
Randy

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1974 Glastron Carlson CV21 2 months 3 weeks ago #133091

Thanks Randy , I calc'd the ratio out to 10.2 to 1 which is about as far as i would want to go with premium pump gas . The cam im hoping is gonna work out ok its pretty much set for a A or B impeller , And yes I hope i dont lunch the crank with the original bolts , i still have half a mind to replace them with a stud kit . Lets just say i wont be using the machine shop i used again . I'll be up to one of the lake winnipesaukee shows in a couple of weeks as a spectator , not sure where , its my brother in laws idea . I'm glad the decals worked out i did a lot of back and forth with the sign shop to get them to fit right , they do do nice work . Gil

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1974 Glastron Carlson CV21 2 months 3 weeks ago #133101

I am almost ready to paint the engine , spent a good part of the day today messin with the push rod guide plates to get the roller rockers to ride across the center of the valves , it took some time but worked out well . I installed the timing chain cover , water pump and the fuel pump , keep in mind you have to clearance Edelbrock heads where the fuel pump mounts . I have to either buy tall valve covers or buy 1/2 inch spacers for my stock covers too fit over the rocker studs more money lol.












































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1974 Glastron Carlson CV21 2 months 3 weeks ago #133103

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Hi Gil, looking great those heads will help a lot on power. Look at link below for correct water flow with a jet. No circulator (auto water pump) or raw water pump is used, cooling water is tapped off the bowl of the jet pump as it's always pumping pressurized water and the thermostat is replaced with a restrictor disk. Jets cool with very different plumbing than a standard inboard or I/O.
Here is a diagram: files.triton.net/old1/cooling.jpg
Jets use the exhaust manifolds to preheat cold raw water and that warmed water enters the bock at the water pump openings. Water exits the block/heads through the therm housing
( with restrictor disk rather than thermostat) and then water goes through the risers (or snails as some call them) and exits into the evexaust flow as usual.
That's how my jet is plumbed and runs temps spot on 160. You will need both the correct cover piece that replaces the circ pump and the therm housing both having provisions for hose barbs. I checked and Glenwood Marine still makes what you need or eBay might help.
Randy

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1974 Glastron Carlson CV21 2 months 3 weeks ago #133114

Thanks for the info Randy , the majority of jet cooling is done that way . Berkeley olds use a different method it's call "take up cooling " . Instead of blasting the engine with anywhere from 100 to 200 psi water to the engine with out a pressure relief valve the take up let's the water pass through to the manifolds while letting the engine take the cooling water from the jet at normal engine presure 12 to 14 psi , that's why a lot of fords and chevy make milk shakes in their oil pans , way too much water presure to the block .

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1974 Glastron Carlson CV21 2 months 3 weeks ago #133131

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Hi Gil,
Ya know, I'm not trying to be a smarty pants just makin' sure :-) I know you do good work but, both of have had to have
a "jet" learning curve so I figured better safe than sorry. As always you are on top of it. Yes, block over pressure needs to be avoided...The jet pump can overdo it compared to a traditional impeller style raw water cooling.
Keep the progress reports coming.
Randy

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1974 Glastron Carlson CV21 2 months 3 weeks ago #133132

I just found out the fuel pump i bought wont work with a marine engine , it has a fuel return line to the tank which i thought was a overflow to the carb " DOH" I'm still in the learning curve lol . Oh well i guess i'll just go back to painting the motor and figure it out later lol . Gil

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1974 Glastron Carlson CV21 2 months 2 weeks ago #133192

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1974 Glastron Carlson CV21 2 months 2 weeks ago #133193

That's some awesome engine porn right there!! ;) B)

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CC-John

1973 Century Resorter 16, 225HP Chrysler LM318

1978 Chris Craft 251 Catalina Express, 330HP Pleasurecraft 350 (383 Stroker)

1974 Glastron Carlson CV21 2 months 2 weeks ago #133197

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There must be some way to display that piece of art. Hope it's not going in a doghouse. What's in mind for exhaust?

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1974 Glastron Carlson CV21 2 months 2 weeks ago #133205

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1974 Glastron Carlson CV21 2 months 2 days ago #133572

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1974 Glastron Carlson CV21 2 months 1 day ago #133598

Holy crap that's awesome!!!!!!!!!

Bob

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1974 Glastron Carlson CV21 2 months 1 day ago #133608

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Lookin' awesome. When are we going to hear it run?

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1974 Glastron Carlson CV21 2 months 21 hours ago #133615

Good Lord that's pretty.

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1974 Glastron Carlson CV21 2 months 19 hours ago #133624

I hope with in the next week or so i'll be putting fuel and electricity to it for its break in run . I'll video good or bad of it when it happens lol

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1974 Glastron Carlson CV21 1 month 3 weeks ago #133685

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1974 Glastron Carlson CV21 1 month 3 weeks ago #133781

You've done some beautiful things with this boat. Have you given any thought to a blower :)

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Damn the torpedoes, full steam ahead !

1974 Glastron Carlson CV21 1 month 1 week ago #133976

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1974 Glastron Carlson CV21 1 month 1 week ago #133977

Yeah Baby ! That's too sweet. She's going to fly already but I'm excessive. LOL.

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Damn the torpedoes, full steam ahead !

1974 Glastron Carlson CV21 1 month 1 week ago #133981

HOMINA HOMINA........

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1974 Glastron Carlson CV21 1 month 1 week ago #133987

Thank you much , been a long time to get to this point , aside from a few leaks and and a couple of valves that need to be adjusted its almost ready to go back into the boat . Thanks to photobucket all the boat pics are gone so here are a few pics of the beast . Gil



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1974 Glastron Carlson CV21 1 month 1 week ago #133999

Truly done with love. I'm glad it's not mine. WAIT, before you take that wrong I mean I would be very hard pressed to decide whether or not to encase it in lucite and put it on a mantle forever or get it in the water and drive it like I stole it ! I'd fry a lot of brain cells trying to choose. :) I can run my little boat onto a rocky beach and not cry over lost paint. Yours is so pretty I'd be afraid to hurt it. Hats off Sir, VERY well done.

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Damn the torpedoes, full steam ahead !

1974 Glastron Carlson CV21 1 day 18 hours ago #134510

Final timing check and carb adjustment and leak check , its got a nice lumpy idle at 850 rpms lol

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1974 Glastron Carlson CV21 1 day 17 hours ago #134511

Wow. Stunning boat.

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1974 Glastron Carlson CV21 1 day 16 hours ago #134512

That Sir is the music that hath charms to soothe the savage breast. Again, very well done. I have all these James Bond scenes running through my mind now. The song in the background seems to be "born on the bayou" LOL.

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Damn the torpedoes, full steam ahead !

1974 Glastron Carlson CV21 1 day 5 hours ago #134516

Firstglassproject wrote: That Sir is the music that hath charms to soothe the savage breast. Again, very well done. I have all these James Bond scenes running through my mind now. The song in the background seems to be "born on the bayou" LOL.

Thank you , its been a long time to get to this point only to wrap it up and shove it in the corner of the garage but next spring is when it all get finished .Gil

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1974 Glastron Carlson CV21 1 day 4 hours ago #134518

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Nothing can beat the sound of big block cubes....PERIOD!
What really grinds me is the kids these days who have those little 4 banger rice burners with beer can mufflers. One passed me up on the highway last night and the admiral said it sounded like a bunch of bees caught in a tin can :-)

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1974 Glastron Carlson CV21 1 day 3 hours ago #134520

My Toyota convertible (sorry but there were no good ones made here for a long time) has 1200 watts and rather than focus on making my car bounce, I can make it sound GREAT from about 3/4 of a mile away and I only crank classic stuff. Skynryd, Seger, Rush ( IAM Canadian after all) and it drives them guys nuts. My volume goes higher than their rev limiters ! LMAO. Course the Wife doesn't think much of it so I don't do it often. Those sewing machine motors just offend my hearing. Check out sightings and look at the toilet powered dock I posted under "methane powered Mercury". You're gonna scratch your head for sure.

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Damn the torpedoes, full steam ahead !

1974 Glastron Carlson CV21 1 day 3 hours ago #134523

Absolutely outstanding Gil!!!!!!!!!!!!

Bob

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