64,000 miles time for chain?

[smallv6]

My car has 64,000 miles should I replace the timing chain, water pump etc. or leave it alone. Motor is out of the car because of a restoration. Ran mint before removed no problems at all.

 

[gn85]

Let me ask these questions...

First off, don't know if you would know this, but is it the stock original nylon chain?? If so.. I'd replace it. I've had a bad experience with the stocker.

As for the water pump and stuff, I like the idea of "if it ain't broke, don't fix it", but when I buy new cars, there are certain things that get great scrutiny. If I have ANY doubt, then OUT IT GOES!!

Water pump, along with fan belt, hoses, etc, are ON THAT LIST!! So, if you have your motor out and it's not too much of a bother, I'd go ahead and save yourself some work and frustration down the road.

Other's may have different opinions.. that's mine.

 

[SuperSix]

If the motor's out - do it. Replace the chain, and water pump.

 

[OKTurbo]

I have the same delima...

My car has right at 60,000 miles on it. I've decided to change the timing chaing....water pump....front seal...rear main seal...oil pan gasket...might even put in a oil booster plate while I'm at it.

The same marathon session will most likely include changing valve springs, intake valve stem seals, valve cover gaskets....along with new motor mounts....possibly all new hoses.

KA CHING $$$

But, these cars are getting "old" now, and most of the soft stuff like the hoses/motor mounts/seals and gaskets just isn't so soft anymore.

I KNOW I need to change out the stock timing chain with the plastic gears...valve springs too ..it just kind of snowballed when I started thinking about all the other stuff I could "get to" when I had the front cover off and the innards exposed.

John

 

[UNGN]

If the motor is out of the car, do it now. To do it right you have to drop the pan. Much easier out of the car.

If the motor was still in the car, I'd say go another 30K.

 

[325DR]

My chain went bad at 60k. I had the front cover off to find that 4 teeth on the timing gear cracked off and were stuck in the oil pickup.

Replace it now, or pay the price later....

 

[smallv6]

Thanks guys I went to napa and ordered everything, I have downloaded the instructions form gnttype.org
so here I go Better safe than sorry

 

[Two Lane]

What is considered the very "best" timing chain (and water pump)?

Lots of posts in archives regarding stretch, slap, noise, false knock, chewing up front covers, etcetera, with several of the "premium brands".

TIA!!

 

[Paul Clark]

I used a Cloys (sp?) double-roller without the tensioner.
That may be up for debate.
Also bet the best water pump would be factory.

 

[microELVIS]

4 teeth ?

Hey dude that is nothn, as soon as I get a chance I wll post a pic of what my timing chain gear looked liked. About 50% teeth gone, and whole piece of nylon chunk gone.

Ya id do it, I was so lucky nothing happened. Weird thing is, it never acted up until i refinished the heads.

 

[bryguy]

reply

I just had mine done at 82,000 miles and the oil pickup was coated with melted plastic and metal shavings. I was told by my mechanic (owns 2 GN's and 1 TTA ) NOT to go with the double roller chain. He got stock original parts and the top gear is now all metal. I also chose to get the high flow oil pump cover. And YES I would replace the water pump as I did ($70) just cause the labor of taking everything apart to get at it cost more than the pump. Also he replaced the line from the oil timing cover to the block (coolant..I think) with a huge heat resistant blue hose about 3-4" long. BottomLine...If you have access now...Replace it. Just my FO Good Luck.

 

[gn85]

Originally posted by smallv6
Thanks guys I went to napa and ordered everything, I have downloaded the instructions form gnttype.org
so here I go Better safe than sorry

What I wrote earlier about having bad experiences with these timing chains... THAT'S what I'm talking about. Found one piece of the nylon stuck in the oil pressure relief valve and another in the brass "T" fitting that supplies oil to the turbo... no oil pressure, engine was KILLED! Low oil pressure to the turbo... died a slow death..

Glad to hear you're playing it safe. Pay a little now ar a lot later. TRUST ME!

 

[Paul Clark]

"I was told by my mechanic (owns 2 GN's and 1 TTA ) NOT to go with the double roller chain."

Please don't say that too loudly. i don't want my car to hear.

 

[smallv6]

Update

Well I pulled the front cover following the gnttype.org instructions to the letter and everything is coming out fine. The plastic gear is fine! not one ding, missing tooth, nothing. I am actually glad to see this. , never the less out it goes! with a brand new steel set.
Should I replace the timing cover/oil pump ?
If so who sells them?
If you think I should just keep them how do I go about cleaning them up? the cover is no problem I was wondering about the oil pump, is it ok to submerge it in kerosene/solvent to clean them?
Thanks in advance.
This is quite the job, I have plans to replace alot of the little things you generally dont see unless the motor is out.
A very good learning experience, lets just hope I can get it all back together

 

[Two Lane]

Originally posted by Two Lane
What is considered the very "best" timing chain (and water pump)?

Lots of posts in archives regarding stretch, slap, noise, false knock, chewing up front covers, etcetera, with several of the "premium brands".

TIA!!

Well young man, after careful research on this critical matter, the recommendation is: get the new GM replacement timing chain assembly, wherein the old plastic gear is now replaced with metal.

For a replacement water cooler, get the FlowKooler #1621.

HTH

 

[WFO]

Originally posted by Two Lane
For a replacement water cooler, get the FlowKooler #1621.

hey,looks like word's getting around.i've been running the flowkooler for about 3 years now with good results.

i yanked the top end off my motor today and my factory timing chain(110k mile factory replacement longblock)looked great.i replaced it with a billet rollmaster timing set.very nice.

i would normally never recommend a part from "the innovators"but i've had great luck with the kenne-bell oil booster plate kit.

later,sean

 

[Red Regal T]

Tough decision. Should I spend the $15 for the timing chain set? And $20 for the water pump? Or take my date to the movies?

 

[smallv6]

Should I replace the timing cover/oil pump ?

 

[Red Regal T]

NO REASON TO ON A 60,000 MILE CAR. WHILE I DID CHANGE THE PUMP AT 160,000, THE COVER NOW HAS 237,000 MILES ON IT.

 

[GN SBS]

GM non-nylon timing chain?

Originally posted by Two Lane
... the recommendation is: get the new GM replacement timing chain assembly, wherein the old plastic gear is now replaced with metal. HTH

Is this a GM part? Anyone know of this or the Part Number?

Thanks,
Scott