Pre 1958 Canadian Pontiac Power Train Tech Forum

Fitz · Fitz

You tried almost everything from retard spark, get advance more, get the mix richer, leaner, walk the dog, kiss the mother in law, etc... it always overheating quickly. The cure is maybe this (pictures) Earlier, many people think it was a good thing to save coolant when repair something needing to...

davelacourse · davelacourse

Well, I think someone replaced my motor's head with a cheap crappy common Chevy head - the 'steam holes' are in the block but not in the head gasket or head: (above pic is NOT my head gasket, but a correct 261 head gasket) What do you think? Thanks, Dave

pontiac 1957 · pontiac 1957

Hi I want to know where I can find a new 2 brls carb. for a 283 cu.in. and a 2 speeeds trans. For now I have a 2 brls carb with oil air filter. The carb is not connect to the trans. Can I change it for an air filter carb? I want someting to fit with the transmission. Thank You Guys

paris69 · paris69

Working on my 1956, 261 engine. I have had it running and everything was going ok. Last time I went to start it, it would just click. Done some playing with the starter solenoid and drive spring and managed to get it to crank and start a few times. Then back to just a click. Shorted the solenoid and got...

long stroke · long stroke

I do know that the only real perfect technique of doing this is to remove the cylinder head from the engine and manually remove the carbon from the head surface. I would like to know if anyone has had any good results from using any of the liquid chemical ways of blowing out carbon buildup in the cylinder h...

long stroke · long stroke

I know a gentleman in the Chicago, Illinois area that is looking for a 261 in line six of any vintage from 1955 to 1962. Mike is his name and he bought my extra 261 last March for his 1951 Chev ragtop. Mike is looking for another 261 for another project of his that he is working on. Mike is probably willing to...

lolu3eh · lolu3eh

please help me install an alternator into my 57 pontiac.rescue this vh last year from under a pine tree. new to restoring. mechanical knowledge- zero(like the leafs playing hockey). A running 283 is in it. Any help would be appreciated. Thanks kirk my nieghbour gave me a generator out of his 57 chev. d...

davelacourse · davelacourse

I confess, 5 years ago I was trying to test-fit the polyurethane mock block, after (following advice from others) denting the passenger side firewall to clear the big block, and ... unexpectedly (to me, anyhow) there was major interference on the driver's side too. I gave up, for a while, and 'a while...

MickyG · MickyG

I'm contemplating the idea of swaping the 216 in my styleline to a much better full pressure 261 or 235 . Is anyone in the Montreal area, looking to part with a good working condition 261 or 235 . I would even consider a 250 . I'm just not a fan of the 216 i currently have in it and looking at my option for a ni...

hwscowboy · hwscowboy

Hey All Well weathers getting warmer so out in the garage tinkering again.I am just putting the head back on the 239 for the 49 Pontiac i'm working on.I checked the manual and it mentions coating the threads in lead sealant.Not sure what they mean by lead sealant.I have tf 15 lead thread sealant that we u...

Stilakid · Stilakid

I am in the process of refurbishing a 1952 National Pontiac ambulance. Was definitely an American car. I have been told the block in Canadian and American cars were different colours. Could someone help in directing me to the proper colour and a source if possible. Thanks in advance.

Shawn · Shawn

I'm thinking About pulling my original flat 6 out and putting a more modern v motor in my 53 pontiac pathfinder.. Any advice? Rough budget for the swap I will do the pulling and installing..I will need some fine tuning from a shop.. I would like to pull the standard trans as well and put in an automatic.. i...

50sedandelivery · 50sedandelivery

I'm still confused about what oil to run in my newly rebuilt 239 C.I. 6 Cyl. I'm a big fan of synthetic, but I've heard it's not the best for our old iron horses. I want to do a test fire soon but would like some opinions before I oil her up.

timbuk · timbuk

just thought id throw this up here lost a valve keeper looked for hours no luck so got the gm part number which is 499599 which is of course obsolete.Went on SBI website and crossed to these numbers. TRW=LK129 PIONEER =PG123 FEDERAL MOGUL/SEALED POWER=VK123 these are also used on cummin...

MoboMac · MoboMac

Mine appears to be dead....Looking for a repair shop....

hawkeye5766 · hawkeye5766

Well, got tired of listening to my rearend howl, even after rebuilding. So I thought I'd put a 8.8 posi with 3.73, got it for 120.00 on used vic with sway bar incl I know it's a chev but will also work for pontiac and other vehicles as well. Will post cost and how to , incase anyone else wants to do the same t...

long stroke · long stroke

I have installed a new solid lifter camshaft, solid lifters and a new gear set on my 1957 261 inline six. I have the pointer on the flywheel dead on the ball timing mark and i have the crank key way at 12:00 straight up. Number one piston is at top dead center but the closest i could get the two timing gear mark...

hwscowboy · hwscowboy

hey all,well doing some more work on the 49 Pontiac.I decided to pull the head off the engine and have a look at the top end of the valves and pistons.Not too bad other than carboned up.A bit of cleanup and all looks good to go.I did a bit of clean up on the block as well and found the engine number.According t...

timbuk · timbuk

got thr 53 up and running she turned oover great had oil in the holes blew that out new plugs and points oil change thinkin it has some stuck/sticky valves 40 psi oil would like to free them up w/o pulling head looking for ideas,valves are in block yikes

long stroke · long stroke

I have a 1957 Pontiac with a 1960 261 inline six cylinder motor. I am looking to change the camshaft and lifters in my motor from hydraulic to solids. The reason is that there are no quality hydraulic cams and lifters being produced today. I can easily purchase a new solid lifter camshaft and matching so...

Topic		Started By	Replies	Views	Last Post
	overheating? (Preview) You tried almost everything from retard spark, get advance more, get the mix richer, leaner, walk the dog, kiss the mother in law, etc... it always overheating quickly. The cure is maybe this (pictures) Earlier, many people think it was a good thing to save coolant when repair something needing to...	Fitz	2	1804	Oct 12, 2015 by davelacourse
	261 head question (Preview) Well, I think someone replaced my motor's head with a cheap crappy common Chevy head - the 'steam holes' are in the block but not in the head gasket or head: (above pic is NOT my head gasket, but a correct 261 head gasket) What do you think? Thanks, Dave	davelacourse	7	4457	Sep 23, 2015 by davelacourse
	Need a new carb. 2 barls (Preview) Hi I want to know where I can find a new 2 brls carb. for a 283 cu.in. and a 2 speeeds trans. For now I have a 2 brls carb with oil air filter. The carb is not connect to the trans. Can I change it for an air filter carb? I want someting to fit with the transmission. Thank You Guys	pontiac 1957	15	2704	Aug 6, 2015 by long stroke
	Ballast resistor question (Preview) Working on my 1956, 261 engine. I have had it running and everything was going ok. Last time I went to start it, it would just click. Done some playing with the starter solenoid and drive spring and managed to get it to crank and start a few times. Then back to just a click. Shorted the solenoid and got...	paris69	14	2493	Jul 23, 2015 by davelacourse
	Blowing out carbon build up in the cylinder head, any tips or thoughts on the matter. 261 inline six cylinder motor. ( 1 2 ) (Preview) I do know that the only real perfect technique of doing this is to remove the cylinder head from the engine and manually remove the carbon from the head surface. I would like to know if anyone has had any good results from using any of the liquid chemical ways of blowing out carbon buildup in the cylinder h...	long stroke	35	5074	Jun 5, 2015 by long stroke
	Looking for a 261 inline six cylinder motor. American buyer in Chicago, Illinois area. (Preview) I know a gentleman in the Chicago, Illinois area that is looking for a 261 in line six of any vintage from 1955 to 1962. Mike is his name and he bought my extra 261 last March for his 1951 Chev ragtop. Mike is looking for another 261 for another project of his that he is working on. Mike is probably willing to...	long stroke	8	2158	May 28, 2015 by long stroke
	alternator wiring ( 1 2 ) (Preview) please help me install an alternator into my 57 pontiac.rescue this vh last year from under a pine tree. new to restoring. mechanical knowledge- zero(like the leafs playing hockey). A running 283 is in it. Any help would be appreciated. Thanks kirk my nieghbour gave me a generator out of his 57 chev. d...	lolu3eh	38	22094	May 26, 2015 by davelacourse
Nov 18 to Dec 2 Black Friday UP TO 50% OFF Plus Huge Coupons
	Back on track to install my 496 (Preview) I confess, 5 years ago I was trying to test-fit the polyurethane mock block, after (following advice from others) denting the passenger side firewall to clear the big block, and ... unexpectedly (to me, anyhow) there was major interference on the driver's side too. I gave up, for a while, and 'a while...	davelacourse	6	2064	May 14, 2015 by jmont64
	Looking for 261 / 235 or 250 (Preview) I'm contemplating the idea of swaping the 216 in my styleline to a much better full pressure 261 or 235 . Is anyone in the Montreal area, looking to part with a good working condition 261 or 235 . I would even consider a 250 . I'm just not a fan of the 216 i currently have in it and looking at my option for a ni...	MickyG	0	1534	May 8, 2015 by MickyG
	installing head bolts (Preview) Hey All Well weathers getting warmer so out in the garage tinkering again.I am just putting the head back on the 239 for the 49 Pontiac i'm working on.I checked the manual and it mentions coating the threads in lead sealant.Not sure what they mean by lead sealant.I have tf 15 lead thread sealant that we u...	hwscowboy	6	1923	Apr 4, 2015 by Fitz
	Non Canadian question from a Canadian (Preview) I am in the process of refurbishing a 1952 National Pontiac ambulance. Was definitely an American car. I have been told the block in Canadian and American cars were different colours. Could someone help in directing me to the proper colour and a source if possible. Thanks in advance.	Stilakid	7	1787	Mar 28, 2015 by 427carl
	Motor swap advice (Preview) I'm thinking About pulling my original flat 6 out and putting a more modern v motor in my 53 pontiac pathfinder.. Any advice? Rough budget for the swap I will do the pulling and installing..I will need some fine tuning from a shop.. I would like to pull the standard trans as well and put in an automatic.. i...	Shawn	16	2142	Mar 6, 2015 by MickyG
	Synthetic Oil or Conventional in my Rebuilt 239?? (Preview) I'm still confused about what oil to run in my newly rebuilt 239 C.I. 6 Cyl. I'm a big fan of synthetic, but I've heard it's not the best for our old iron horses. I want to do a test fire soon but would like some opinions before I oil her up.	50sedandelivery	5	1933	Feb 19, 2015 by 50sedandelivery
	239 flathead valve keepers part number info (Preview) just thought id throw this up here lost a valve keeper looked for hours no luck so got the gm part number which is 499599 which is of course obsolete.Went on SBI website and crossed to these numbers. TRW=LK129 PIONEER =PG123 FEDERAL MOGUL/SEALED POWER=VK123 these are also used on cummin...	timbuk	1	1321	Feb 9, 2015 by 50sedandelivery
Nov 18 to Dec 2 Black Friday UP TO 50% OFF Plus Huge Coupons
	Fuel tank sending unit........ (Preview) Mine appears to be dead....Looking for a repair shop....	MoboMac	3	1383	Feb 7, 2015 by MoboMac
	Explorer 8.8 in 567 Pontiac / Chev (Preview) Well, got tired of listening to my rearend howl, even after rebuilding. So I thought I'd put a 8.8 posi with 3.73, got it for 120.00 on used vic with sway bar incl I know it's a chev but will also work for pontiac and other vehicles as well. Will post cost and how to , incase anyone else wants to do the same t...	hawkeye5766	14	2419	Feb 6, 2015 by hawkeye5766
	235/261 inline six timing gear set question. (Preview) I have installed a new solid lifter camshaft, solid lifters and a new gear set on my 1957 261 inline six. I have the pointer on the flywheel dead on the ball timing mark and i have the crank key way at 12:00 straight up. Number one piston is at top dead center but the closest i could get the two timing gear mark...	long stroke	14	3679	Feb 2, 2015 by long stroke
	239 replacement motor (Preview) hey all,well doing some more work on the 49 Pontiac.I decided to pull the head off the engine and have a look at the top end of the valves and pistons.Not too bad other than carboned up.A bit of cleanup and all looks good to go.I did a bit of clean up on the block as well and found the engine number.According t...	hwscowboy	3	1503	Jan 25, 2015 by Fitz
	239 flatty stuck valves (Preview) got thr 53 up and running she turned oover great had oil in the holes blew that out new plugs and points oil change thinkin it has some stuck/sticky valves 40 psi oil would like to free them up w/o pulling head looking for ideas,valves are in block yikes	timbuk	10	1557	Jan 22, 2015 by beaucarlo
	261 Inline Six motor question on camshafts. (Preview) I have a 1957 Pontiac with a 1960 261 inline six cylinder motor. I am looking to change the camshaft and lifters in my motor from hydraulic to solids. The reason is that there are no quality hydraulic cams and lifters being produced today. I can easily purchase a new solid lifter camshaft and matching so...	long stroke	4	1804	Nov 17, 2014 by GLHS60
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