#67994 - 02/19/10 05:22 PM
Re: Compression test finally
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Registered: 03/06/09
Posts: 133
Loc: Seattle Wa
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Anybody, I need a second opinion before I bring my heads in, today. Originally posted by grandprix38: What ya think of this quote, ever heard of it? and mine has 125k so hopefully mine a valve job won't do any damage. I was asking for a good auto machine shop to do valve work on clubseagp and thats one respone I got
How many miles u have on the motor?
Remember, a fresh valve job could tear up the rings on an older engine.
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 Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#67995 - 02/19/10 05:57 PM
Re: Compression test finally
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Registered: 03/06/09
Posts: 133
Loc: Seattle Wa
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Ahhh forget it I am going with this quote and getting valve job's on the heads. Originally posted by HercMan:
I think the head gaskets are fine. Reason being either cyl 1 or 5 would also be low.
Ok so now we know there is a compression issue on #3. Poor some oil into the cylinder and re check the compression. If the compression rises then it's a ring/cylinder issue. If the pressure stays the same it's a valve issue. [/QUOTE]
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#67996 - 02/20/10 12:30 AM
Re: Compression test finally
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Registered: 02/08/04
Posts: 3463
Loc: Gonzales Tx.
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What did the- quote U on a valve job?If it is more than $400 U can bu- a set of remanufactured heads with new springs and valves AZ sells a decent set.Chico(pops)
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#67997 - 02/20/10 04:18 AM
Re: Compression test finally
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Registered: 03/06/09
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Loc: Seattle Wa
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Originally posted by Chico:
What did the- quote U on a valve job?If it is more than $400 U can bu- a set of remanufactured heads with new springs and valves AZ sells a decent set.Chico(pops) 325.00 with payment's. seems a bit high but I will check out AZ. Thanks
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#67998 - 02/21/10 09:17 PM
Re: Compression test finally
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Registered: 03/06/09
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Loc: Seattle Wa
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Originally posted by Chico:
fill the bad c-lender with a good cup of oil it should take at least overnight for the oil to leak down ,also inspect the c-lender walls to see if it has damage .Chico(pops) Almost got second head off, had to do some side jobs for extra mony but anyway, well I pushed on piston, and only evidence of any movement was oil squeezing out the top (just a tiny bit of movement each cylinder @tdc) I filled #3 cylinder with oil and let it sit for the hour I was out there today , stayed at the same level the whole time. Edited: 2hours later, cylinder still full to the brim.
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#67999 - 02/22/10 09:13 AM
Re: Compression test finally
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Registered: 03/06/09
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Loc: Seattle Wa
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Originally posted by grandprix38: Originally posted by Chico:
[b] fill the bad c-lender with a good cup of oil it should take at least overnight for the oil to leak down ,also inspect the c-lender walls to see if it has damage .Chico(pops)
well I pushed on piston, and only evidence of any movement was oil squeezing out the top (just a tiny bit of movement each cylinder @tdc) I filled #3 cylinder with oil and let it sit for the hour I was out there today , stayed at the same level the whole time.
Edited: 2hours later, cylinder still full to the brim.[/b]13 hours later oil leaked down maybe 1 cetimeter at most, looks like rings are in good shape. so off with the other head! Won't be long before I am on the road again.
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#68000 - 02/23/10 03:26 PM
Re: Compression test finally
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Registered: 03/06/09
Posts: 133
Loc: Seattle Wa
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Originally posted by grandprix38: Originally posted by grandprix38: [b] Originally posted by Chico:
[b] fill the bad c-lender with a good cup of oil it should take at least overnight for the oil to leak down ,also inspect the c-lender walls to see if it has damage .Chico(pops) Almost got second head off, had to do some side jobs for extra mony but anyway, well I pushed on piston, and only evidence of any movement was oil squeezing out the top (just a tiny bit of movement each cylinder @tdc) I filled #3 cylinder with oil and let it sit for the hour I was out there today , stayed at the same level the whole time. Edited: 2hours later, cylinder still full to the brim.[/b]
so off with the other head!
Won't be long before I am on the road again. [/b]40 hours+ oil still sitting i centimeter below brim same as yesterday morning. Can't wait to get this job going. OTJ Car aciident put back job.
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#68001 - 03/01/10 03:55 PM
Re: Compression test finally
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Registered: 03/06/09
Posts: 133
Loc: Seattle Wa
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Originally posted by grandprix38: Originally posted by grandprix38: [b] Originally posted by grandprix38: [b] quote:
Originally posted by Chico:
fill the bad c-lender with a good cup of oil it should take at least overnight for the oil to leak down ,also inspect the c-lender walls to see if it has damage .Chico(pops) Almost got second head off, had to do some side jobs for extra mony but anyway, well I pushed on piston, and only evidence of any movement was oil squeezing out the top (just a tiny bit of movement each cylinder @tdc) I filled #3 cylinder with oil and let it sit for the hour I was out there today , stayed at the same level the whole time. Edited: 2hours later, cylinder still full to the brim.[/b]
so off with the other head!
Won't be long before I am on the road again. [/b]40 hours+ oil still sitting i centimeter below brim same as yesterday morning. Can't wait to get this job going. OTJ Car aciident put back job.
Yes got to be the valve, I fill #3 cylinder with oil on the 21'st of feb. and it only leaked down half way so far and today is March 1st, I also put some in #5 since the piston was close to bdc and same thing. Can't wait to get this thing back together.
Catch ya guys later
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#68002 - 03/02/10 11:50 AM
Re: Compression test finally
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Registered: 03/07/09
Posts: 355
Loc: Topeka, KS
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i just did a test on my 99 with almost 200k and my lowest pressure was 150
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#68003 - 05/16/10 05:06 PM
Re: Compression test finally
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Registered: 03/06/09
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Loc: Seattle Wa
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well can't complete do to injury, brought front head in to test and lightly deck and repair #3 valves. If it is cracked or warped I will pull rear head and replace with newer head's.
was going tpo check timing chain today but it started raining.
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#68004 - 05/18/10 08:22 AM
Re: Compression test finally
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Registered: 03/06/09
Posts: 133
Loc: Seattle Wa
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Originally posted by grandprix38:
well can't complete do to injury, brought front head in to test and lightly deck and repair #3 valves. If it is cracked or warped I will pull rear head and replace with newer head's.
was going tpo check timing chain today but it started raining. Does anyone have this vac tee?  and pics of rear engine assembled can't remember which brackets went where. Thanks.
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#68005 - 05/18/10 10:28 AM
Re: Compression test finally
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Registered: 07/17/06
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Loc: Columbia/College Park, MD
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IMHO, it might be time for a new car. Also, what's up with that branch in your sig?
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#68006 - 05/18/10 02:56 PM
Re: Compression test finally
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Registered: 06/29/06
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Loc: CT, U.S.A
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#68007 - 05/19/10 08:49 PM
Re: Compression test finally
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Registered: 03/06/09
Posts: 133
Loc: Seattle Wa
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Originally posted by Igor:
IMHO, it might be time for a new car. Also, what's up with that branch in your sig? The only thing wrong was a #3 cylinder valve prob, the car and motor is in great condition, little dirty from previous owners but she will be cleaned up and ready to go as soon as my injurys are over. Once I get her back together it will be in excellent condition. The branch was from a storm, it was actually a dead tree that fell and hit my car, so I took pictures of it for claim purposses. But I will probobly trade it in for a newer gp, or minivan. Kool thanks alot Blackarrow98gp, that helps out alot, more then I asked for and now I won't have a prob figuring out where every thing goes.
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Thanks for editing my sig Blackarrow98gp great Job! Now to get this babe back together! 1997 Grand Prix SE 3800 series 2
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#68008 - 05/19/10 08:51 PM
Re: Compression test finally
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Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
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