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#1 |
accepting donations
Join Date: Oct 2008
Location: houston tx
Posts: 521
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Truck wont start when it's hot.
Since I bought my truck it runs in the 120 range. Yeah I know thats to cold.
Anyway the temps are getting hotter around here and when the engine temp gets to around 160 and I shut the truck off, it diesels and then its very hard to start. Would the deiseling be caused by timing to advanced and maybe vapor lock on the restart?
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1999 Yamaha roadstar 1600 chop. (in progress.) See my builds here>http://s113.photobucket.com/albums/n238/nickrp_2006/ "Ya'll can go to hell, I'm going to Texas." David Crockett |
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#2 |
Registered User
Join Date: Mar 2003
Location: Uvalde, Tx
Posts: 407
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Re: Truck wont start when it's hot.
Have you tried backing the timing off to see if it helps? From what your saying it sounds like it may be too far advanced.
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1969 C/10 Longbed undergoing rebuild. Old Chevy's Never Die, They Just Rust Around The Edges |
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#3 |
Registered User
![]() Join Date: May 2007
Location: dallas ga
Posts: 1,505
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Re: Truck wont start when it's hot.
have you tried running premium fuel? It might help that situation
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#4 |
Account Suspended
![]() Join Date: Nov 2008
Location: Prunedale California
Posts: 782
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Re: Truck wont start when it's hot.
I have the same problem happening with my cheyenne, it starts right up when
its cold but as soon as it gets hot I have to cranck it several times and even push the gas all the way down in order to get it to start back again, I am thinking of changing new plugs cables and a new HEI distributor (I have the points one) More info will be appreciated from the guys that know ![]() |
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#5 |
Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: Truck wont start when it's hot.
Both the dieseling and the hard start when hot can be caused by the timing being too far advanced.
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Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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#6 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Truck wont start when it's hot.
These trucks run fine on regular.I believe it`s the timing advanced too much,too.160 is still really cool operating temp.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#7 | |
Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
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Re: Truck wont start when it's hot.
Quote:
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#8 |
Registered User
Join Date: Sep 2007
Location: Vilseck Germany (currently)
Posts: 317
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Re: Truck wont start when it's hot.
I agree with all of the above. Set your timing back to factory specs, and change out your thermostat. 120 is way too cool for proper aspiration. For all, Mallory makes a kit to replace the points with an electronic set up. About 90-100 bucks, real easy to install (you don't have to pull the distributor), looks factory and works like a charm. Cnut
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#9 |
accepting donations
Join Date: Oct 2008
Location: houston tx
Posts: 521
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Re: Truck wont start when it's hot.
Thanks for the responses guys. I had a feeling it might be the timing but I've been messing with diesel's for the last ten years and not gasoline engines so I just wanted to get some confirmation.
Guess I need to go buy a timing light.
__________________
1999 Yamaha roadstar 1600 chop. (in progress.) See my builds here>http://s113.photobucket.com/albums/n238/nickrp_2006/ "Ya'll can go to hell, I'm going to Texas." David Crockett |
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#10 | |
Account Suspended
![]() Join Date: Nov 2008
Location: Prunedale California
Posts: 782
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Re: Truck wont start when it's hot.
Quote:
differently when trying to start the truck when hot, also the gas dumping might be another simptom, thanks for all the advice guys! theyammieguy,, sorry for sticking my nose into your thread, I just happen to have the same problemo. ![]() |
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#11 |
accepting donations
Join Date: Oct 2008
Location: houston tx
Posts: 521
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Re: Truck wont start when it's hot.
I don't mind at all.
I know I need to check the thermostat. I'm having two issues when hot starting. I know one is heat soak to the starter but the other is it will crank over and over without starting. That's what made me think about vapor lock.
__________________
1999 Yamaha roadstar 1600 chop. (in progress.) See my builds here>http://s113.photobucket.com/albums/n238/nickrp_2006/ "Ya'll can go to hell, I'm going to Texas." David Crockett |
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