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Wed Mar 30, 2011 4:06 pm

What is the proper way to stretch push rod tube to 7.52 inches?

Wed Mar 30, 2011 4:21 pm

pulling them hard!

Wed Mar 30, 2011 4:23 pm

I use the end of a 3/8 drive ratchet.

Wed Mar 30, 2011 4:37 pm

i like useing a rocker arm shaft in a vice i put part of the push rod tube inside the shaft and move from left to right and it makes it longer spencerfvee . Bigmeat wrote: What is the proper way to stretch push rod tube to 7.52 inches?

Wed Mar 30, 2011 6:08 pm

Once you have them stretched to spec and are ready to install the new seals on each end, be very careful- the tube's ends are VERY sharp- I gouged my thumb years ago in a semi-circular cut... :oops: Wear gloves.

Wed Mar 30, 2011 7:50 pm

Sorry about the spelling I have Mark Tucker disease!

Wed Mar 30, 2011 8:33 pm

Bigmeat wrote: Sorry about the spelling I have Mark Tucker disease! Mctuckeyitis. Careful.....next you'll be making some very witty jokes (really witty).

Wed Mar 30, 2011 8:56 pm

I am too tired today to make witty jokes.

Wed Mar 30, 2011 9:23 pm

Bigmeat wrote: I am too tired today to make witty jokes. Mark is different coz he is reTIRED so he has six Saturdays and a Sunday to think about stuff. (Notice my sad attempt at a McTuckeyism?)

RC

Thu Mar 31, 2011 3:49 pm

When i got to work today I used Glenn idea on using a 3/8 drive socket I belived I used a 13 or 14mm and it worked fine. Thanks for the help!

Mon Dec 19, 2011 10:11 am

what do you mean "use the end of a 3/8 drive ratchet"? I don't get it and can't wrap my head around it. are you sticking the socket in the hole, sticking a plier into the hole of the socket and pulling?

Mon Dec 19, 2011 10:21 am

twomonkeysayoyo wrote: what do you mean "use the end of a 3/8 drive ratchet"? I don't get it and can't wrap my head around it. are you sticking the socket in the hole, sticking a plier into the hole of the socket and pulling? basically saying you find a socket or shaft of some sort that fits inside the end of the tube and clamp the tube/socket in a vise and pull/wiggle from the other end to stretch the tube.

RC

Mon Dec 19, 2011 10:44 am

Bigmeat wrote: Sorry about the spelling I have Mark Tucker disease! hmm wonder if I have it?kinda like lou gerrigs dsesszzee,bad luck getting one with the same name as you have.what are the odds?

Mon Dec 19, 2011 12:54 pm

ok. My tubes are all flared inwards, so nothing that fits in the end is big enough to clamp against. I'm gonna have to get creative.

Mon Dec 19, 2011 1:38 pm

just make sure when your done the pushrod dosent contact any part of thet inward tube and saw your pushrod's in half.

Mon Dec 19, 2011 7:51 pm

I found a wooden dowel that just fits works good because the sharp edge of the pushrod will grip it a little. Squeeze the end of the tube on the dowel, wiggle and pull.

Sat Apr 08, 2017 7:36 pm

Is it ok to bend the end of the push rod tube in order to expand it?

I grabbed the end of the tubes and pulled them with pliers but it bent the ends a bit and was no longer circular. It wasn't bend much though.

Has anyone seen a tool that expands these tubes more easily?

Sat Apr 08, 2017 9:20 pm

kawfee wrote: Is it ok to bend the end of the push rod tube in order to expand it?

I grabbed the end of the tubes and pulled them with pliers but it bent the ends a bit and was no longer circular. It wasn't bend much though.

Has anyone seen a tool that expands these tubes more easily?

Stick a 14mm socket in the ends and hold in a vise while you gently pull/side-to-side. It is subtle. I measure/marked a piece of cardboard to use as a template:

Sat Apr 08, 2017 10:08 pm

Should both sides be expanded or just one?

What if the push rod tube fits in firmly before the head is even bolted on? I put the push rod tubes in and they fit snugly before I even put bolts on. Maybe this is an indication I have a deck height problem?

Sun Apr 09, 2017 1:19 am

I don't think it matters if only one side expands, as long as it gets some "crush" it will seal.