305 v6 question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

66folks · 01-09-2012, 11:04 PM

I am in the process of tearing a 305E v6 down, I am trying to remove the crankcase ventilation filter housing. I have not been able to get it removed and dont want to damage it. Has anyone ever removed this before and have any tips on how to remove it. thanks

**MusicMan70** · 01-09-2012, 11:24 PM

From the Jolly 6066 GMC website and credit goes to Lewis Matkin; here is his response;

"Jim, this is Lewis Matkin. That strange housing on the driver's side of the
rear of the block is a filter, a crankcase ventilation filter. It unscrews the
top half from the bottom half and exposes a cartridge air filter. I hope this
answers your question. Welcome to the group!!!!"

A great source of info for these unique engines! .....Hope that helps

Cordially,
Lewis Ellis Matkin, Jr.
Dade City, Florida

66folks · 01-09-2012, 11:26 PM

I have the top part unscrewed I'm looking to remove the bottom portion of it. Sorry I didn't clarify that prior.

**MusicMan70** · 01-09-2012, 11:38 PM

found this as well.

Good morning Jake,on our 63 the crankcase filter canister is a two piece unit,
the top unscrews off while the base remains in the crankcase.I was'nt sure how
it worked,and I thought I had to pop the whole canister out,but that was'nt the
case. It appears to be a common occurance that these filters were neglected
judging by some of the comments that I have read.The one on our truck has never
been changed.
Michael Conner-Live OakFl

Jake Groby is a member and may have the real answer about it's removal.....Henry

66folks · 01-10-2012, 12:10 AM

MusicMan,

Thanks for the info, I have been looking at his page for info but havent found exactly what I have been looking for.

**MusicMan70** · 01-10-2012, 12:18 AM

Jolly says it's a pressed fit and...

It's a tight fit, but its just pressed in. It may be stuck after 40 some odd
years, but you can work it out. Spray some stuff like WD40 on it, let it sit
for awhile, the pry up on the base. The canister will unscrew in about the
middle so you can change the filter element, NAPA #2718.

I have removed two from old engines, but they were out of the trucks. Good
luck.

"Jolly" Goodfellow
Northern Utah

**Corts60** · 01-10-2012, 01:55 AM

Scrape where the canister meets the block to get away the grime and soak it with PB Blaster for about a day and then carefully twist and pull it out. Might require some love from channel locks or something similar.

duallyjams · 01-10-2012, 08:00 PM

Yeah soak it and soak it then soak it some more I destroyed the last one that I did.

jbgroby · 01-10-2012, 10:42 PM

Yep, Scrape it clean if the heavy oil, spray the PB blaster or such let it soak. Using a light rubber mallet, tap it back and forth a bit then pull it up. My unit was built with the downdraft tube. Slightly fidderent but you had more to grab onto.

Jake

ahaynes106 · 04-01-2014, 12:40 PM

Thanks. I have been searching for days on info about removing one of these and finally found this thread. I assume getting it back in is straightforward, maybe a light tapping with previously mentioned mallet?

newbe351 · 04-01-2014, 04:37 PM

Yep. Mine just pushed/pulled in and out......

ahaynes106 · 04-02-2014, 06:51 PM

Ok...soaked in PB Blaster for 24 hours. Can't get a good grip with my hand due to lack of clearance between engine and firewall. With top screwed off, I can grab the wall of it with channel locks and wiggle it, but wiggling and pulling as best I can it is not budging. I have not tried prying from the bottom...again, not much clearance with it in the truck. So any more tips before I destroy it? LOL.

Thanks guys!

01-09-2012, 11:04 PM	#1
66folks Registered User Join Date: Dec 2010 Location: Navarre Fl Posts: 16	305 v6 question I am in the process of tearing a 305E v6 down, I am trying to remove the crankcase ventilation filter housing. I have not been able to get it removed and dont want to damage it. Has anyone ever removed this before and have any tips on how to remove it. thanks Attached Images

01-09-2012, 11:26 PM	#3
66folks Registered User Join Date: Dec 2010 Location: Navarre Fl Posts: 16	Re: 305 v6 question I have the top part unscrewed I'm looking to remove the bottom portion of it. Sorry I didn't clarify that prior.

01-09-2012, 11:38 PM	#4
MusicMan70 Senior Member Join Date: Feb 2011 Location: Corona, CA Posts: 1,842	Re: 305 v6 question found this as well. Good morning Jake,on our 63 the crankcase filter canister is a two piece unit, the top unscrews off while the base remains in the crankcase.I was'nt sure how it worked,and I thought I had to pop the whole canister out,but that was'nt the case. It appears to be a common occurance that these filters were neglected judging by some of the comments that I have read.The one on our truck has never been changed. Michael Conner-Live OakFl Jake Groby is a member and may have the real answer about it's removal.....Henry __________________ MusicMan70 1961 GMC Suburban

01-10-2012, 12:10 AM	#5
66folks Registered User Join Date: Dec 2010 Location: Navarre Fl Posts: 16	Re: 305 v6 question MusicMan, Thanks for the info, I have been looking at his page for info but havent found exactly what I have been looking for.

01-10-2012, 12:18 AM	#6
MusicMan70 Senior Member Join Date: Feb 2011 Location: Corona, CA Posts: 1,842	Re: 305 v6 question Jolly says it's a pressed fit and... It's a tight fit, but its just pressed in. It may be stuck after 40 some odd years, but you can work it out. Spray some stuff like WD40 on it, let it sit for awhile, the pry up on the base. The canister will unscrew in about the middle so you can change the filter element, NAPA #2718. I have removed two from old engines, but they were out of the trucks. Good luck. "Jolly" Goodfellow Northern Utah __________________ MusicMan70 1961 GMC Suburban

01-09-2012, 11:24 PM	#2
MusicMan70 Senior Member Join Date: Feb 2011 Location: Corona, CA Posts: 1,842	Re: 305 v6 question From the Jolly 6066 GMC website and credit goes to Lewis Matkin; here is his response; "Jim, this is Lewis Matkin. That strange housing on the driver's side of the rear of the block is a filter, a crankcase ventilation filter. It unscrews the top half from the bottom half and exposes a cartridge air filter. I hope this answers your question. Welcome to the group!!!!" A great source of info for these unique engines! .....Hope that helps Cordially, Lewis Ellis Matkin, Jr. Dade City, Florida __________________ MusicMan70 1961 GMC Suburban

01-10-2012, 01:55 AM	#7
Corts60 Just here to tinker Join Date: Jun 2008 Location: Holland, MI Posts: 3,697	Re: 305 v6 question Scrape where the canister meets the block to get away the grime and soak it with PB Blaster for about a day and then carefully twist and pull it out. Might require some love from channel locks or something similar. __________________ 78 C10 SWB Diesel #1 (wrecked)http://67-72chevytrucks.com/vboard/s...1978+silverado 78 C10 SWB Diesel #2 (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=650751 60 GMC Suburban (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=445526 60 GMC 1000 (sold)http://67-72chevytrucks.com/vboard/showthread.php?t=298235 67 GMC 1500 (sold) http://67-72chevytrucks.com/vboard/s...d.php?t=803695 73 Chevy C20(Daily)http://67-72chevytrucks.com/vboard/s...d.php?t=852767 86 Suburban(summer unit) http://67-72chevytrucks.com/vboard/s...d.php?t=810697 88 Suburban 4x4(sold)

01-10-2012, 08:00 PM	#8
duallyjams Registered User Join Date: May 2007 Location: Deale Md Posts: 4,663	Re: 305 v6 question Yeah soak it and soak it then soak it some more I destroyed the last one that I did. __________________ James 63 GMC V6 4speed carryall 65 chevy swb bbw V8 auto 68 K20 327/4 speed, buddy buckets 2002 GMC CC Dually Duramax 64 GMC lwb 3/4 V6 4speed SOLD 66 GMC swb bbw buddy buckets SOLD IG duallyjams The only thing that stays the same is constant change!

01-10-2012, 10:42 PM	#9
jbgroby Registered User Join Date: Nov 2008 Location: Lacombe, LA Posts: 2,772	Re: 305 v6 question Yep, Scrape it clean if the heavy oil, spray the PB blaster or such let it soak. Using a light rubber mallet, tap it back and forth a bit then pull it up. My unit was built with the downdraft tube. Slightly fidderent but you had more to grab onto. Jake __________________ http://s1299.photobucket.com/user/jb...23904108567829

04-01-2014, 12:40 PM	#10
ahaynes106 Registered User Join Date: Mar 2014 Location: Athens AL Posts: 10	Re: 305 v6 question Thanks. I have been searching for days on info about removing one of these and finally found this thread. I assume getting it back in is straightforward, maybe a light tapping with previously mentioned mallet?

04-01-2014, 04:37 PM	#11
newbe351 Registered User Join Date: Dec 2004 Location: West Sacramento, CA Posts: 368	Re: 305 v6 question Yep. Mine just pushed/pulled in and out......

04-02-2014, 06:51 PM	#12
ahaynes106 Registered User Join Date: Mar 2014 Location: Athens AL Posts: 10	Re: 305 v6 question Ok...soaked in PB Blaster for 24 hours. Can't get a good grip with my hand due to lack of clearance between engine and firewall. With top screwed off, I can grab the wall of it with channel locks and wiggle it, but wiggling and pulling as best I can it is not budging. I have not tried prying from the bottom...again, not much clearance with it in the truck. So any more tips before I destroy it? LOL. Thanks guys!



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