Chain Rattle at start up - ZR-1 Net Registry Forums

wikdzr1 · 08-23-2005

I have a 92 ZR1 with 60k miles, only during start up the chains rattle for a quick second I assume until presure increases. Should I worry about this, if so what should I do?

regards,
Brett

yellowz · 08-23-2005

brett
there has been a design change to the right hand tensioner.If you are concerned with the rattle have that changed however its an expensive part.
my 92#475 white/white had the noise and i updated to the new tensioner.

peter

ZR1 MK · 08-23-2005

Its not much of a concern, but thicker oil will help while an updated right side chain tensioner, preoil pump or accumulator will eliminate the problem.

Jim Jones · 08-24-2005

Quote:

Originally Posted by yellowz

brett
there has been a design change to the right hand tensioner.If you are concerned with the rattle have that changed however its an expensive part.
my 92#475 white/white had the noise and i updated to the new tensioner.

peter

What exactly does "expensive" mean?

ZR1 MK · 08-25-2005

Quote:

Originally Posted by Jim Jones

What exactly does "expensive" mean?

Approx $220 in parts plus labor.

rbidwell · 08-26-2005

If you decide to replace the right side chain tensioner you will need a special tool to set it after it's installed. I have one that I can send you, if you would send it back when you are done with it. ron

wikdzr1 · 08-29-2005

Thank you, how big of a job is it? Are there any pics or instructions anywhere I do have a service manual.

Regards,
Brett

40th#381 · 08-29-2005

I Had Cam Chain Rattle @ start up with my 93. I started useing Mobil 1 (M1-207) oil filters and 10W-30 Mobil 1. Hasen't happened again.

Jan

rbidwell · 08-29-2005

I don't consider myself a great mechanic and I didn't have any problems. Just follow the instructions it isn't too bad of a job. You might want to read this. http://www.corvetteforum.com/techtip...D=46&TopicID=2

wikdzr1 · 08-31-2005

Thanks for the info, come to think of it I just changed my oil & filter. I will put on a Mobil one filter & let you know.

08-23-2005	#1
wikdzr1 Join Date: Feb 2004 Posts: 21	Chain Rattle at start up I have a 92 ZR1 with 60k miles, only during start up the chains rattle for a quick second I assume until presure increases. Should I worry about this, if so what should I do? regards, Brett __________________ 92 ZR1 B&B Triflo DRC Prom K&N

08-23-2005	#2
yellowz Join Date: Aug 2005 Posts: 54	rattle brett there has been a design change to the right hand tensioner.If you are concerned with the rattle have that changed however its an expensive part. my 92#475 white/white had the noise and i updated to the new tensioner. peter

08-29-2005	#7
wikdzr1 Join Date: Feb 2004 Posts: 21	Thank you, how big of a job is it? Are there any pics or instructions anywhere I do have a service manual. Regards, Brett __________________ 92 ZR1 B&B Triflo DRC Prom K&N

08-31-2005	#10
wikdzr1 Join Date: Feb 2004 Posts: 21	Thanks for the info, come to think of it I just changed my oil & filter. I will put on a Mobil one filter & let you know. __________________ 92 ZR1 B&B Triflo DRC Prom K&N

08-23-2005	#3
ZR1 MK Join Date: Aug 2005 Location: NY Posts: 143	Its not much of a concern, but thicker oil will help while an updated right side chain tensioner, preoil pump or accumulator will eliminate the problem. __________________ Mike 427 cu in LT5 [URL="http://zr1mk.weebly.com"]http://zr1mk.weebly.com[/URL]

08-26-2005	#6
rbidwell Join Date: Sep 2004 Location: Limon, CO Posts: 117	If you decide to replace the right side chain tensioner you will need a special tool to set it after it's installed. I have one that I can send you, if you would send it back when you are done with it. ron

08-29-2005	#8
40th#381 Join Date: Jul 2005 Location: Ft.Myers Posts: 62	I Had Cam Chain Rattle @ start up with my 93. I started useing Mobil 1 (M1-207) oil filters and 10W-30 Mobil 1. Hasen't happened again. Jan