: 2F continued


yardbird
09-20-2002, 11:36 AM
I pulled off the valve cover and watched the pushrods open and close the valves...presumably that is. I am wondering if maybe I need to adjust the rocker arm due to the fact that the new cam has a higher duration. Does this sound stupid or am I on the right track? I used a remote starter and watched the action of the engine as I cranked and I saw air and ether shoot up out of the carb.(I am outside so no I am not going to blow up anything with the ether fumes.)I am about to quit for the day gotta go get ready for work. Any suggestions?other than putting in a V8

cruiserbrett
09-20-2002, 11:46 AM
Seems like there might be some issue with the cam lobe timing in regards tothe crankshaft or valves improperly adjusted. Are both valves closed on #1 TDC(firing TDC)? Can you feel the lash in the rocker? Does is move an bit or is it tight?

You HAVE to adjust the rockers for at least close to the right clearance (even cold) b/c the RV cam can be a regrind which makes the cam base circle smaller and opens up the lash accordingly. Solid lifter cams do not live long with large amounts of lash(way out of factory spec.) Also, if the head/block were shaved or you used a thicker/thinner head gasket it may change the needed lenght of pushrod. So what may have been enough lash before may not be now... Follow the Haynes manual and do them all...

-Brett

yardbird
09-20-2002, 12:07 PM
The head gasket is from a top end rebuild kit. It came from JT Outfitters and is supposed to be the stock replacement. The cam is supposed to be new, it came from Man-A-Fre and was sold as new to me.I am going to go through my Haynes manual tonight when I get home from work and look through the section on the valves and rocker assembly. The rocker arms are tight no lash in them, so I will readjust them to spec from the manual, unless they are supposed to be different. let me know what you think, Thanks.

sixty
09-20-2002, 12:42 PM
for most aftermarket cam shafts you want between .018 & .020 on your valves lash. if your lash is tight then that is why you have no compression. they are not allowing the valves to close. if your valve lash is set too tight it will eat your cam REAL quick. set your valves & it should run like a champ. (set them at like .022 cold & then when there warm follow the reccomended specs of your cam or run about .018.). DO NOT follow the stock toyota valve lash specs. your truck will run like crap!!

yardbird
09-20-2002, 05:47 PM
Thanks Sixty, I will do that. I just got back from work and about to tear into it now.

yardbird
09-20-2002, 06:45 PM
Ok I have the lash at .022 on all 6 cylindrs. I am getting compression now. I turned it over and it STARTED!!!!!!! :D :D :D
But I got a flame out of the carb when it was running.:( :( :( I have the buttefly propped open. I was told do this first to get the engine to fire by other 38 mm owners. Any suggestions? I am starting to rethink the distributor again.

sixty
09-20-2002, 07:06 PM
Cool!!!! the only thing that it could really be is you timing is off & your getting spark w/ the intake valve open. make sure you've got the right wires on the right cylinders & then play w/ your timing & all should be good!!! run that thing at about 7d BTDC & then adjust up from there until you get pinging under load & then back off a little usually araound 9 od 10D BTDC . an advaceable/ adjustable timing light is the best thing to use when doing timing on a 2F.

oh yeah, you also need to make sure your setting the timing at the correct rpm's (650 or 950rpm's ....I can't remember off hand)

yardbird
09-20-2002, 07:18 PM
Yea the distibutor is in correctly, I will try that tomorrow. It's 10PM here and I am running a makeshift exhaust straight off the header to give it a little back pressure and it aint the quietest thing and my neighbors would go crazy right now. I am going to advance the timing like you said once I can get it on the road.I need to try and find an exhaust shop to make me a 3" system for it. Then I need to re-register the thing as a passenger car instead of a TRUCK. They charged me 180.00 personal property on it last year because it was registered that way. I thought I needed those plates with the lift, but it is still within the legal limits.:D

texican
09-20-2002, 07:33 PM
You should not "need'' a 3 '' system for 257 cubes......a 2.5'' system, will flow all the air the engine can pump.
Butch

Advent Horizon
09-20-2002, 07:38 PM
I bet it could pump 3" worth with a turbo;)

yardbird
09-20-2002, 07:50 PM
well, I already have a new 3" high flow converter...yea this is going to be a daily and offroad driver so I have to at least have that on there. I might just sell that and go with the 2 1/2 like Texican said. Hey Texican I am flying down to Dallas on thursday and I will be in Honey Grove and Ladonia on Friday thru Sunday. I might try and stop by to say hi.
Oh, Texican you think the 21/2 will be enough for the mods I have done? ...cam, weber, headers, ported,? if so let me know..and let me know if you know of anyone in need of a brand new high flow 3" in/out converter from heddman

texican
09-20-2002, 07:51 PM
AFAIK Mace is the only one on this side of the pond with a 2F and a turbo, and he's just gonna run a 180 and route it up thru the hood..............it probably won't be running til '03
:flipoff2:
Butch

BJ On Roids
09-20-2002, 07:59 PM
Originally posted by texican
AFAIK Mace is the only one on this side of the pond with a 2F and a turbo, and he's just gonna run a 180 and route it up thru the hood..............it probably won't be running til '03
:flipoff2:
Butch

COOL....a tractor

'03? as in 03 minutes!!

that thing will be toeing your a$$ at farmington :flipoff2:

(im sticking up for him while he wrenches it)

texican
09-20-2002, 08:24 PM
Originally posted by yardbird
well, I already have a new 3" high flow converter...yea this is going to be a daily and offroad driver so I have to at least have that on there. I might just sell that and go with the 2 1/2 like Texican said. Hey Texican I am flying down to Dallas on thursday and I will be in Honey Grove and Ladonia on Friday thru Sunday. I might try and stop by to say hi.
Oh, Texican you think the 21/2 will be enough for the mods I have done? ...cam, weber, headers, ported,? if so let me know..and let me know if you know of anyone in need of a brand new high flow 3" in/out converter from heddman
Hell if you are that close and don't swing by I'll be pissed.........15 miles and you will probably go thru Bonham on your way from big D.
If you are running a Cat, this will restrict the flow, some, price the 3" and the 2 1/2" but from the studies I have done, a 2 1/2" will flow (depending upon the bends and twists etc. ) aprox 380 cubes @ 5000 RPM
There are a whole bunch of factors that will influence flow, but we run 2 1/2" single on stout 350's and notice no loss of power, and many of these we are switching duals out to make the trail proof.
Butch

texican
09-20-2002, 08:40 PM
that thing will be toeing your a$$ at farmington :flipoff2:

(im sticking up for him while he wrenches it) [/B][/QUOTE]

How about a friendly Aussie/Texas wager.....I sure would like some 16" split rims for the 45............
:flipoff2:
Butch

ranger
09-20-2002, 09:16 PM
Valves or timing, thats what I thought!
Glad it finally worked out for ya!:skull:

Jason M
09-20-2002, 09:56 PM
Originally posted by texican
AFAIK Mace is the only one on this side of the pond with a 2F and a turbo, and he's just gonna run a 180 and route it up thru the hood..............it probably won't be running til '03
:flipoff2:
Butch

It is looking a lot closer than you think ;)
(however, Rob don't make that bet, and not because I am not going to be done!!!)


Tonight was a bit of a layback. It seems my mothers neighbor decided that she was going to put a cinderblock wall up between their homes. And we had to rip the current fence down....
I am still wondering why I went to all of the work for someone else..
Yeah, I do. My mommy told me to ;)



Even with a turbo I am going to stick with a 2.5" exhaust. You ported the exhaust? From what I have seen that may not have been the best idea. Not as much backpressure as before. It should rev a bit better but at the cost of a bit of low end power. That is the same problem that you get with dual's or a 3" system on a 40. Just not enough backpressure... Even with your mods.
Best bet is to just go to a 2.5" exhaust and be done with it.
You gonna just run the cat as a muffler? It does work.

texican
09-20-2002, 10:15 PM
Is the threaded hole big enough for the wastegate or do these run one?
From what I've read the wastegate is for high RPM's to keep the turbo from overboosting the engine, the old 3.8 Grand Nat'l Buicks would blow the gate ....I've done it, but don't remeber the RPM...it was up there though, prob. more than a 2F will see.
What type carb is that?
I would still like a set of the split rims, wonder what frieght would be?
Butch

Jason M
09-20-2002, 10:27 PM
It should be the wastegate adjustment screw. At least I think so..

The carb is a 465cfm holley 4 barrell. Interesting little carb. I am going to use the butterflies (converted to mechanical secondaries instead of vacume) under the propane mixer.
Unless I can find a super cehap mechanical 600 cfm carb plate to try.
The 465 would be perfect with one of the old Offy manifolds..

yardbird
09-20-2002, 11:08 PM
I want to thank everyone for giving me the great advice on getting my engine to start:D It feels great to hear the thing finally turn over. Butch I will see you next week and I will be bringing the hubs with me. I emailed Tom and told him that I would leave them with you.
Now it is time to sit back and:beer: :beer: :beer:

yardbird
09-21-2002, 09:19 AM
I am doing a compression test cause when I cranked her up this morning, It starts, runs rough, but when it shuts off I got a spray of air and gas out of the carb which leads me to believe that one of the vaves is sticking on the compression stroke. Anyone got any other ideas? I am trying running some compressed air in the cylinders to see if I can hear any leaks right now and I am doing the compression test next.

BJ On Roids
09-21-2002, 03:37 PM
Originally posted by texican
How about a friendly Aussie/Texas wager.....I sure would like some 16" split rims for the 45............
:flipoff2:
Butch [/B]

dont you guys get those?

steel wheels are better, get some 15x10s, and put 35s on it!!

i got myself a 45...well sorta now, its gunna be a BIG bright pink hybrid :eek: :rolleyes: with 42s, it had splitties on it too ROFL

BJ On Roids
09-21-2002, 03:43 PM
Originally posted by Jason M
It should be the wastegate adjustment screw. At least I think so..

The carb is a 465cfm holley 4 barrell. Interesting little carb. I am going to use the butterflies (converted to mechanical secondaries instead of vacume) under the propane mixer.
Unless I can find a super cehap mechanical 600 cfm carb plate to try.
The 465 would be perfect with one of the old Offy manifolds..

so the carby was good??.....COOL

post pics of the exhaust running through the hood, tractor style!!

texican
09-21-2002, 06:28 PM
[QUOTE]Originally posted by BJ On Roids
[B]

dont you guys get those?

steel wheels are better, get some 15x10s, and put 35s on it!!

No we don't get those!!

Got big ass 15" wheels all over over here , I want the 2 piece for the unique-ness and to put the tall skinny 7.50 16's on it.
Give me a approx cost and shipping.
Butch

sixty
09-23-2002, 09:58 AM
Originally posted by texican

Give me a approx cost and shipping.
Butch

Butch,
the shipping will just about ABSOLUTELY kill you (probably in the $200-$400 range) :eek:

not only do you have to pay ocean/land freight, but every asshole who gets their dirty hands on your package will charge you a "handling" Fee :mad: this equals more than shipping & they won't give you the package until you paid there extortion fees!!! (just ask Jason)

Soon (as soon as I get my lazy ass to take some digital pics) I'll post pics of what just happened to end up in the same crate as Jasons turbo!!!